[Botany • 2024] Sophora phulangkaensis (Fabaceae: Sophoreae) • A New Species from Thailand based on morphological and molecular evidence

 

Sophora phulangkaensis Mattapha, K.Khamm. & Suddee, 

  in Mattapha, Suddee, Khammongkol et Kiewbang, 2024. 

พิษนาศน์ภูลังกา  ||  DOI: 10.3767/blumea.2024.69.02.03 

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Abstract 

Sophora phulangkaensis is illustrated and newly described here. The species shows similarities with its congener, S. exigua, by having an obovate terminal leaflet and up to 15 leaflets but differs in the floral parts. A morphological comparison between the two species is provided along with a discussion. The phylogenetic placement of the new species is presented and discussed based on molecular evidence by nuclear (ITS) and chloroplast markers (matK). The results suggest that the new species is nested into sect. Rubriflorae, which includes S. exigua and S. huamotensis. The circumscription of sect. Rubriflorae is expanded after being redefined by our findings. In addition, the updated key to species of the genus Sophora for the Flora of Thailand is given based on recent specimen observations. Additionally, lectotypes for S. exigua, S. tonkinensis, and S. violacea var. pilosa are designated.

Keywords: Fabaceae; Leguminosae; Nakhon Phanom; Phulangka; Sophora; lectotypification; molecular phylogeny

Sophora phulangkaensis Mattapha, K.Khamm. & Suddee.
a. Leaves at the flowering stage and inflorescence; b. flower; c. opened calyx showing outer surface; d. standard (side view); e. wing petals; f. keel petals; g. stamens; h. ovary; i. fruits

 (a–h: K. Khammongkol 211, BKF; i: S. Mattapha s.n., BKF, KKU). 

 Drawing by Orathai Kerdkaew.

Sophora phulangkaensis Mattapha, K.Khamm. & Suddee.
 a. Leaves and inflorescence; b. part of inflorescence; c. opened calyx; d. standard petals; e. wing petals; f. keel petals; g. stamens; h. ovary; i. infructescence and mature leaves.

 — Photographs by a. K. Khammongkol, b–h. W. Kiewbang, i. S. Mattapha.

Sophora phulangkaensis Mattapha, K.Khamm. & Suddee, sp. nov. 

 Closely related to S. exigua Craib, from which it differs by being a small shrub 0.5–2 m tall (vs undershrub up to 0.5 m tall in S. exigua), with sparse to dense hairs on midrib and margins of leaf blade (vs densely tomentose in S. exigua, particularly when young), presence of bracteoles (absent in S. exigua), the standard 15–16 mm long (18–20 mm long in S. exigua), filaments hairy at base with hairy anthers (glabrous in S. exigua), ovary densely strigose (tomentose in S. exigua) and longer pods (7–13 cm long vs 5–7 cm long in S. exigua). 

 Etymology. The specific epithet refers to the name of Phu Langka National Park, where the species was discovered.

 

  Mattapha, S.; Suddee, S.; Khammongkol, K. and Kiewbang, W. 2024. Taxonomic Notes on Sophora phulangkaensis, A New Species of Sophora (Fabaceae – Sophoreae) from Thailand based on morphological and molecular evidence.  Blumea - Biodiversity, Evolution and Biogeography of Plants. 69(2); 130–138. DOI: doi.org/10.3767/blumea.2024.69.02.03

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พิษนาศน์ภูลังกา Sophora phulangkaensis Mattapha, K.Khamm. & Suddee 

พืชชนิดใหม่ของโลก จากภูลังกา จังหวัดนครพนม

[Botany • 2024] Dalbergia calcarea (Fabaceae: Dalbergieae) • A New Species from Lao PDR

Dalbergia calcarea Lanors., Mattapha & Lamxay, 

in Mattapha, Lanorsavanh, Lamxay; Souvannakhoummane et Chanthavongsa, 2024. 

 ຄໍາພີ້ເຫຼືອງ  ||  DOI: 10.20531/tfb.2024.52.2.08

Abstract

Dalbergia calcarea, a new species currently only known from the limestone mountains of Khammouan Province, central Laos, is described and illustrated. The key characters such as habit, colour and limb of standard, and number of ovules of the new species are discussed and compared with its closest relatives. A detailed description along with etymology, conservation status, illustrations and colour photographs are provided for a new species. This discovery increases the number of Laotian species in the genus Dalbergia to seventeen taxa.

Keywords: Faboideae, Indo-China, Laos, new taxon, taxonomy

Dalbergia calcarea Lanors., Mattapha & Lamxay: 
A. Leaves and inflorescences; B. Leaf; C. Leaflet; D. Flower; E. Standard, outer surface (left) & inner surface (right); F. Wing petals; G. Keel petals; H. Stamens & calyx; I. Ovary; J. Fruits bearing one seed; K. Fruit bearing 4 seeds.

 A–I: S. Lanorsavanh & V. Lamxay SL1641; J & K: S. Lanorsavanh & K. Souvannakhoummane SL1721. 

Drawn by Keooudone Souvannakhoummane.

Dalbergia calcarea Lanors., Mattapha & Lamxay:
 A. Leaves and inflorescences; B. Close up of flowers; C. Flowers (front view, left; side view, right); D. Wing petals; E. Keel petals; F. Stamens enclosing the ovary, inside the calyx; G. Fruits.

Photos by Soulivanh Lanorsavanh.

Dalbergia calcarea Lanors., Mattapha & Lamxay, sp. nov.

This species is characterised by being a tree, leaves with 9–33 leaflets with equal-sided lateral bases, the limb of the standard petal 7–8 mm long, monadelphous stamens (5+5), a pubescent ovary with 3–6 ovules and glabrous fruits. It resembles Dalbergia pinnata (Lour.) Prain in having a similar shape and size of the leaflets, however, it is distinct by the equal-sided bases of the lateral leaflets (vs strongly unequal-sided in D. pinnata), leaflets pubescent on both sides (pubescent only on lower surface in D. pinnata), longer inflorescences (4–6.5 cm long vs 2–3 cm long in D. pinnata), larger bracts (2–)4–6 × 2–2.5 mm vs ca 0.5 × 0.2 mm in D. pinnata),the limb of the standard petal broadly obovate, 7–8 mm long (vs orbicular, 1–2 mm long in D. pinnata) and ten stamens (vs 9 stamens in D. pinnata). 

Type: Lao PDR, Khammouan Province, Khounkham Distr., Phou Pha Man Hill, mixed deciduous forests on limestone mountains, ca 325 m, ...

Etymology.— The specific epithet refers to the habitat of the species where it grows on the range of karst. 

Vernacular.— ຄໍາພີ້ເຫຼືອງ (Kham pee lueang).

Sawai Mattapha, Soulivanh Lanorsavanh, Vichith Lamxay; Keooudone Souvannakhoummane and Khamfa Chanthavongsa. 2024. Dalbergia calcarea, A New Species of Dalbergia (Fabaceae: Dalbergieae) from Lao PDR. Thai Forest Bulletin (Botany). 52(2), 62–67. DOI:  doi.org/10.20531/tfb.2024.52.2.08

[Botany • 2022] Phanera mekongensis (Fabaceae: Cercidoideae) • A New Species from Northeastern Thailand as supported by Morphological and Molecular Evidence

Phanera mekongensis Mattapha, Suddee & Duangjai, 

in Mattapha, Suddee, Duangjai & Kiewbang, 2022. 

กำลังช้างเผือก  ||  DOI: 10.3767/blumea.2022.67.02.04

 

Phanera mekongensis, a new species from Phu Wua Wildlife Sanctuary, Northeastern Thailand, is described and illustrated. The morphological description of the new species is provided and discussed in comparison with closely related species. The molecular data from nuclear and chloroplast markers show that the new taxon is robustly positioned in a well-supported Phanera clade that includes the type species of the genus, P. coccinea.

Keywords: Bauhinia; ITS; Phanera; Phu Wua; molecular phylogeny; new taxon; trnL-F

    

Phanera mekongensis Mattapha, Suddee & Duangjai.
a. Leaves and tendrils; b. leaf and inflorescences; c. flower (top view); d. calyx lobes showing inner side (left) and outer side (right); e. posterior petal; f–g. lateral petals; h. stamen, anther shown in front view; i. fruit; j. seed

(a–h: Suddee, Puudjaa, Hemrat & Kiewbang 5390; i–j: Suddee, Mattapha, Hemrat & Kiewbang 5343; all BKF). 

— Drawn by Orathai Kerdkaew.

Photographs of Phanera mekongensis Mattapha, Suddee & Duangjai.
 a. Tendrils and stipules; b1. upper surface of leaves; b2. lower surface of leaves; c. inflorescence; d. flower shown in top view; e. dissected flowers (calyx lobes and petals removed) showing bracteoles (yellow arrow), hypanthium (white arrow), ovary (red arrow) and stigma (green arrow); f. fruit; g. seeds.

— Scale bars: b1 = 7 cm; c, g = 1 cm; d = 8 mm; e = 11 mm; f = 8 cm. 

— Photos by Wittawat Kiewbang.

 

S. Mattapha, S. Suddee, S. Duangjai and W. Kiewbang. 2022. Phanera mekongensis (Fabaceae: Cercidoideae), A New Species from Thailand as supported by Morphological and Molecular Evidence. Blumea - Biodiversity, Evolution and Biogeography of Plants. DOI: 10.3767/blumea.2022.67.02.04

 

   

“กำลังช้างเผือก” — นักพฤกษศาสตร์ไทย ค้นพบอีกพืชชนิดใหม่ของโลก 

 เป็นพืชสมุนไพรใช้บำรุงกำลังมายาวนาน หลังศึกษาชีวโมเลกุลระบุอยู่ในสกุลเครือเขาหนัง (Phanera) พบในลุ่มน้ำโขง กระจายพันธุ์ในทวีปเอเชียเท่านั้น

 นายสไว มัฐผา อาจารย์ประจำคณะวิทยาศาสตร์ มหาวิทยาลัยราชภัฏอุดรธานี ผู้เชี่ยวชาญพรรณไม้วงศ์ถั่ว (Fabaceae) เปิดเผยว่า ได้ร่วมกับนายสุธีร์ ดวงใจ ผู้เชี่ยวชาญพรรณไม้ อาจารย์ประจำคณะวนศาสตร์ มหาวิทยาลัยเกษตรศาสตร์ นายสมราน สุดดี นักพฤกษศาสตร์จากสำนักวิจัยการอนุรักษ์ป่าไม้และพันธุ์พืช กรมอุทยานแห่งชาติสัตว์ป่า และพันธุ์พืช กรมอุทยานแห่งชาติ สัตว์ป่าและพันธุ์พืช และนายวิทวัส เขียวบาง นักวิชาการป่าไม้จากสำนักเศรษฐกิจการป่าไม้ กรมป่าไม้ กระทรวงทรัพยากรธรรมชาติและสิ่งแวดล้อม ร่วมกันค้นพบพืชชนิดใหม่ของโลก ในสกุลเครือเขาหนัง (Phanera) จากประเทศไทย พืชชนิดนี้มีชื่อไทยที่เป็นที่รู้จักกันมานานว่า กำลังช้างเผือก มีชื่อพฤกษศาสตร์ที่เพิ่งถูกตีพิมพ์ว่า Phanera mekongensis Mattapha, Suddee & Duangjai ได้ตีพิมพ์ตามกฎเกณฑ์ทางพฤกษศาสตร์ในวารสารนานาชาติ Blumea เล่มที่ 67หน้าที่ : 113-122 ปี พ.ศ.2565

[Botany • 2022] Millettia sirindhorniana & M. tomentosa (Fabaceae: Millettieae) • Two New Species of Millettia for Thailand

Millettia sirindhorniana Mattapha, Thanant., Kaewmuan & Suddee, 

in Mattapha, Suddee, Tetsana, et al., 2022. 

 ม่วงราชสิริน  ||  DOI:  10.20531/tfb.2022.50.2.09 

  photos by Theerawat Thananthaisong.

Abstract

Two new species of the genus Millettia, M. sirindhorniana and M. tomentosa, are herein described and illustrated. Millettia sirindhorniana shares morphological characteristics with M. extensa and M. fruticosa in being a woody climber with the same leaflet shape and inflorescence type. However, it differs from those species by the presence of stipels and basal callosities, and its shallowly crenate floral disk. Millettia tomentosa is similar to M. extensa and M. suddeei, but differs from the first species by having a brachyblast bearing ca 10 flowers, the standard with basal callosities, presence of a tubular floral disk and oblong to slightly obovate fruits; and it differs from the latter by the absence of stipels, the standard with swollen basal callosities, monadelphous stamens and the tubular floral disc. Descriptions, illustrations, colour plates, vernacular names, etymology, conservation status and key diagnostic characteristics are provided.

 

Keywords: Khun Kon Waterfall, Leguminosae, Pala-U, Pha Son Kaeo, Suan Phueng

Millettia sirindhorniana Mattapha, Thanant., Kaewmuan & Suddee:
 A. Leaves and inflorescences; B. Standard showing basal callosities on inner surface; C. & D. Wings; E. Keel petals, lateral pockets not shown; F. & G. Stamens showing the basal fenestrae(an opening pore) and side view, respectively; H. Ovary; I. Fruits.

A.–H. drawn from Thananthaisong et al. 429; I. drawn from Thananthaisong et al. 135. 

Illustrations by Orathai Kerdkaew.

Millettia sirindhorniana Mattapha, Thanant., Kaewmuan & Suddee:
 A. Leaves and inflorescences; B. Leaf; C. Inflorescences; D. Close up of inflorescence; E. Calyx with stamens inside; F. Standard; G. & H. Wing petals; I. Keel petals showing lateral pockets in inner side; J. Stamens showing basal fenestrae; K. Side view of stamens; L. Ovary with 10 shallowly crenate lobes (green line); M. Fruits.

 All photos by Theerawat Thananthaisong.

Millettia sirindhorniana Mattapha, Thanant., Kaewmuan & Suddee, sp. nov.

This species resembles Millettia fruticosa (DC.) Benth. ex Baker in having subterminal inflorescences, but differs in having leaves without stipels (present in M. fruticosa), standard petal with basal callosities (vs without basal callosities in M. fruticosa), the base of the standard tapering into the claw (vs abruptly constricted into the claw in M. fruticosa), pseudo-monadelphous stamens (vs truly monadelphous in M. fruticosa), and the presenceof floral disk (vs absent in M. fruticosa). It is also similar to M. extensa (Benth.) Benth. ex Baker but differs in having the terminal leaflet the same size aslateral ones or slightly larger (vs terminal leaflet muchlarger than lateral ones in M. extensa), absence of stipels (vs present in M. extensa), each brachyblasts having 3–5 flowers (vs 1–3 flowers in M. extensa), purple flowers, rarely white (vs pinkish to creamy white flowers in M. extensa) and presence of floral disk (vs no floral disk in M. extensa).

Etymology.— The specific epithet is chosen to honour Her Royal Highness Princess Maha Chakri Sirindhorn of Thailand for her dedication to science and encouragement of conservation in Thailand.

Vernacular.— Muang Ratcha Sirin (ม่วงราชสิริน) 

(name given by H.R.H. Princess Maha Chakri Sirindhorn).

Millettia tomentosa Mattapha & Tetsana:
 A. Leaves and inflorescences; B. Part of inflorescence with close up of flowers; C. Young floral buds; D. Mature flower; E. & F. Standard petals; G. Wing petals; H. Keel petals showing abaxial surface; I. Calyx with stamens inside; J. Ovary; K. Fruit; L. Seed.

All photos by Sawai Mattapha.

Millettia tomentosa Mattapha & Tetsana sp. nov.

This species is most similar to Millettia suddeei Mattapha & Tetsana, being a liana with up to 9 leaflets,the terminal leaflet being mostly obovate and in having pseudoracemes but it differs in the absence of stipels (present in M. suddeei), the standard with swollen basal callosities (absent in M. suddeei), monadelphous stamens and presence of the tubular floral disk. It is also similar to M. extensa in having a brown tomentose indumentum on young branches, the colour and length of standard, monadelphous stamens and a tomentose ovary, but differs in having 5–9 leaflets (vs 7–11 leaflets in M. extensa), absence of stipels (vs present in M. extensa), having 4–5 pairs of secondary veins (vs 8–12 pairs in M. extensa), each brachyblast bearing ca 10 flowers (vs 1–3 flowersin M. extensa), the standard with basal callosities on the inner side in the middle of the claw and presence of the tubular floral disk.

Etymology.— The specific epithet refers to the densely tomentose ovary and fruits.

Vernacular.— Son kaeo (ซ่อนแก้ว) (proposed here).

Sawai Mattapha, Somran Suddee, Naiyana Tetsana, Theerawat Thananthaisong and Anusara Kaewmuan. 2022. Millettia sirindhorniana and M. tomentosa, Two New Species of Millettia (Fabaceae: Millettieae) for Thailand. Thai Forest Bulletin (Botany). 50(2), 89–99. DOI:  10.20531/tfb.2022.50.2.09  

Sawai Mattapha, Felix Forest, Julie A. Hawkins, Somran Suddee, Naiyana Tetsana and Pranom Chantaranothai. 2019. Three New Species, Lectotypifications and Synonymisations in Millettia (Fabaceae: Faboideae) for Thailand. THAI FOREST BULL., BOT. 47(2); 171–183. DOI: 10.20531/tfb.2019.47.2.07

    

[Botany • 2022] Millettia densiflora (Fabaceae: Millettieae) • Notes on the Genus Millettia in the Indo-Burmese Region; A New Species, New Records and Lectotypifications

 Millettia densiflora Mattapha, Lanors. & Lamxay, 

in Mattapha, Sungkaew, ... et Hein, 2022.

ຈັກຈັ່ນເຄືອ  ||  DOI: 10.20531/tfb.2022.50.1.08

Abstract

New species, new records and lectotypifications in Millettia are presented. Millettia densiflora, a new species discovered from Laos, is described and illustrated. Additionally, we provide a detailed morphological description, illustrations, colour plates, distribution map, phenology, conservation status and a discussion of its closest affinity. We further present first reports for Thailand (Millettia

cana, M. puerarioides and M. velutina), and Laos (M. velutina). Lectotypes are designated for Millettia cana, M. multiflora, M. oraria and M. velutina. The full descriptions of Millettia cana and M. multiflora are provided for the first time based on fresh specimens.

Keywords: Fordia, Indo-Burma, Indo-China, new taxon, lectotypification

 Millettia densiflora Mattapha, Lanors. & Lamxay: 
A. Leaves and pseudoracemose inflorescence; B. Leaf; C. Pseudopaniculate inflorescence; D. & E. Ventral views of standard; F. dorsal view of standard; G. Wing petals showing outer surfaces; H. Keel petals showing outer surfaces; I. Calyx & ovary; J. Stamens; K. Fruit.

A.–J. drawn from Lanorsavanh & Lamxay SL2182; K. drawn from Lanorsavanh & Lamxay SL2184. 

Illustrations by Chadtip Rodtassana.

  Millettia densiflora Mattapha, Lanors. & Lamxay:
A. Leaves and pseudoracemose inflorescences; B. Pseudopanicles with brachyblasts; C. Part of inflorescence; D. & E. Ventral view of standard (yellow line showing basal callosities);F. Dorsal view of standard; G. Wing petals; H. Keel petals (outer surfaces showing dense hairs, and lateral pocket (green line)); I. Stamens; J. Calyx and ovary inside.

Photos by S. Lanorsavanh.

Millettia densiflora Mattapha, Lanors. & Lamxay, sp. nov.

 This species resembles Millettia caerulea (Grah.) Baker in having leaflets with caudate or acuminate apices, inflorescences with an intermediateform between pseudoraceme and pseudopanicle, violet flowers with densely sericeous standards and monadelphous stamens, but it differs in being a woody climber (vs scandent shrub or small tree in M. caerulea), absence of stipels (vs present in M. caerulea), secondary axes of inflorescences up to 15 cm long (vs up to 30 cm long in M. caerulea) and the standard with basal callosities (vs without basal callosities in M. caerulea). 

Etymology.— The specific epithet refers to the densely packed flowers on the brachyblasts of the inflorescence.

Vernacular.— Chak chan kheua in Laotian (ຈັກຈັ່ນເຄືອ).

 

Sawai Mattapha, Sarawood Sungkaew , Wittaya Pongamornkul, Soulivanh Lanorsavanh, Vichith Lamxay and Khant Zaw Hein. 2022. Notes on the Genus Millettia (Fabaceae: Millettieae) in the Indo-Burmese Region; A New Species, New Records and Lectotypifications.  Thai Forest Bulletin (Botany). 50(1); 75–87. DOI: 10.20531/tfb.2022.50.1.08

[Botany • 2021] Phanera laotica & P. rubra (Leguminosae: Cercidoideae) • Two New Species of Phanera from Lao PDR

Phanera laotica Mattapha & Lanors. and

Phanera rubra Lanors. & Mattapha

in Mattapha, Lanorsavanh, Lamxay & Chanthavongsa, 2021.

DOI: 10.1007/s12225-021-09964-1 

 Researchgate.net/publication/354192623 

 facebook.com/SoulivanhLanorsavanh

  facebook.com/PhaKhaoLaoPlatform 

Summary

Two new species of the genus Phanera, Phanera laotica Mattapha & Lanors. and P. rubra Lanors. & Mattapha, are described and illustrated. Their taxonomic affinities are discussed. They were discovered in central Lao PDR and are assessed here as endemic and rare species.

Key Words: Bauhinia, Indo-China, Leguminosae, taxonomy

Phanera laotica Mattapha & Lanors. sp. nov.

 Type: Laos, Bolikhamxai province, Paksan distr., ...

ETYMOLOGY. The specific epithet refers to the country, Lao PDR, where the species was discovered and found as endemic.

Phanera rubra Lanors. & Mattapha, sp. nov. 

Type: Laos, Xaysomboun province, Longxan distr., 

Phou Khao Khouay National Protected Area, ...

ETYMOLOGY. The specific epithet “rubra” refers to the reddish flowers.

Sawai Mattapha, Soulivanh Lanorsavanh, Vichith Lamxay and Khamfa Chanthavongsa. 2021. Two New Species of Phanera (Fabaceae: Cercidoideae) from Lao PDR. Kew Bulletin. DOI: 10.1007/s12225-021-09964-1

  Researchgate.net/publication/354192623_Two_new_species_of_Phanera_from_Lao_PDR

 facebook.com/SoulivanhLanorsavanh/posts/4173348622720549

  facebook.com/PhaKhaoLaoPlatform/posts/849984315720477

[Botany • 2021] Antheroporum puudjaae (Fabaceae: Millettieae) • A New Species from Northern Thailand

 

Antheroporum puudjaae Mattapha & Tetsana

in Mattapha & Tetsana, 2021.

ทลายเขาพูดจา ||  DOI: 10.20531/tfb.2021.49.1.16  

facebook.com/SawaiMattapha 

  facebook.com/NTetsana 

 Abstract

Antheroporum puudjaae, a new species discovered in Northern Thailand, is described and illustrated. It differs from other described species of Antheroporum by its drooping inflorescences and oblong fruits with 2–4 seeds. The generic description is expanded based on these new characters. An emended key to the species for the Flora of Thailand is also provided.

Keywords: Genus Antheroporum emended, Leguminosae, Millettia, Nan Province, taxonomy

Antheroporum puudjaae Mattapha & Tetsana;
A. Leaves; B. Inflorescence; C. Floral bud; D. Stamens and calyx; E. Wings, a side view showing the wing petal strongly curved backward; F. Keel; H. Stamens; I. Ovary

(all drawn from Tetsana et al. 1710 (BKF). 

Illustrations by O. Kerdkaew.

Antheroporum puudjaae Mattapha & Tetsana.
A. Twig and leaves. B. Drooping inflorescences borne on the old branch. C. Part of inflorescence showing close-up of flowers. D. Fruit E. Seed.

A–C. by N. Tetsana. D–E. from La-Ongsri et al.1825 (QBG) by S. Mattapha.

Antheroporum puudjaae Mattapha & Tetsana, sp. nov. 

Resembles Antheroporum pierrei in having compound leaves, pseudoracemes with (1 or) 2 flowers per node, and monadelphous stamens, but differs by possessing more leaflets (9–11 in A. puudjaae vs (1–)5–7 in A. pierrei), drooping inflorescences (vs erect in A. pierrei), shorter but broader standard limb (6.5–7 × 8–8.5 mm in A. puudjaae vs 7–10 × 3–5 mm in A. pierrei), longer claws of petals (5–6 mm long in A. puudjaae vs 2.5–3 mm long in A. pierrei), ovules 2–4 (vs 1–2 in A. pierrei), oblong and cylindrical fruits (vs subglobose to slightly oblong in A. pierrei) and longer fruits (8–10 cm long vs 3–4 cm long in A. pierrei).

     

Ecology.— On limestone mountains and dry evergreen forest, at ca 700 m.

Etymology.— The specific epithet is named in honour of Mr Pachok Puudjaa, who has long been collecting plants for the Flora of Thailand project.

 Vernacular.— Tha lai khao phut cha (ทลายเขาพูดจา).

    Sawai Mattapha and Naiyana Tetsana. 2021. Antheroporum puudjaae (Millettieae: Fabaceae), A New Species from Thailand. Thai Forest Bulletin (Botany). 49(1); 130-134. DOI: 10.20531/tfb.2021.49.1.16

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[Botany • 2021] Burkilliodendron album (Fabaceae: Millettieae), A New Genus and Species Record for Thailand

Burkilliodendron album (Ridl.) Sastry

in Mattapha & Leeratiwong, 2021. 

DOI: 10.20531/tfb.2021.49.1.09

Photos by C. Leeratiwong.

 

ABSTRACT

Burkilliodendron album is a new genus and species record for Thailand. The detailed description of the reproductive part of the species is emended based on the fleshy flowers. Photographs taken from the field are provided for easy identification.

Keywords: Fordia, Leguminosae, Malesiana, Millettia, taxonomy

Burkilliodendron album (Ridl.) Sastry:
A. Flowering branch; B. close up of flowers; C. Young fruit.

Photos by C. Leeratiwong.

Burkilliodendron album (Ridl.) Sastry: 

Sawai Mattapha and Charan Leeratiwong. 2021. Burkilliodendron album (Fabaceae: Millettieae), A New Genus and Species Record for Thailand. Thai Forest Bulletin (Botany). 49(1), 73-75. DOI: 10.20531/tfb.2021.49.1.09

[Botany • 2019] Millettia phuwuaensis, M. pyrrhocarpa & M. suddeei • Three New Species, Lectotypifications and Synonymisations in Millettia (Fabaceae: Faboideae) for Thailand

 Millettia suddeei Mattapha & Tetsana

in Mattapha, Forest, Hawkins, et al., 2019. 

  DOI: 10.20531/tfb.2019.47.2.07

ABSTRACT

During preparation of the account of the genus Millettia (Fabaceae: Faboideae) for the Flora of Thailand, some new field collections and specimens from herbaria were found to represent three new species, and here they are described and illustrated with a distribution map. Lectotypes of Millettia names are designated for nine species, five new synonyms of Millettia are proposed and Millettia tecta is raised to species status.

KEYWORDS: Generic circumscription, Leguminosae, Millettieae, taxonomy

 Millettia phuwuaensis Mattapha & Suddee, sp. nov.

This species is similar to Millettia penicillata Gagnep. in having distinct red lines on the outer surface of the standard, but differs in its fewer leaflets (5–7 vs 9–17 in M. penicillata), shorter pseudoracemesor pseudopanicles (up to 10 cm long vs 8–28 cm in M. penicillata), monadelphous stamens (vs diadelphous stamens in M. penicillata) and a tubular disk (vs disk absent in M. penicillata).

Vernacular.— Phan na rai phu wua (พรรณรายภูวัว, หางไหลภูวัว).

Etymology.— The specific epithet refers to the type locality.

Notes.— Millettia phuwuaensis has distinctive red lines and dense puberulent hairs on the outer surface of the standard. The reddish lines look super-ficially similar to those of M. penicillata but are thicker and more unevenly scattered (vs parallel in M. penicillata). Additionally, Millettia phuwuaensisis recognised by its narrowly obovate and larger standard petal (14–15 × 12–13 mm vs orbicular and 8–9 × 9–10 mm in M. penicillata).

 Figure 4. A–B: Millettia pyrrhocarpa: A. Inflorescence; B. Fruit.
C–E: Millettia suddeei: C. Leaves and inflorescence; D. Part of the inflorescence; E. Papilionaceous flower (Right) and stamens (Left).

Photos by Sawai Mattapha (A–B) & Naiyana Tetsana (C–E).

Millettia pyrrhocarpa Mattapha, Forest & Hawkins, sp. nov.

This species is similar to Millettia sericea (Vent.) Wight & Arn. ex Hassk., in having ferruginous hairs on the exocarp surface of the fruits, but differs in its caudate leaflet apices (rather than the acute or retuse apices in M. sericea). The lower leaf surface is densely hairy along the midrib, but otherwise glabrous (vs densely sericeous throughtout in M. sericea), the standard petal has basal callosities tapering into the claw (vs basal callosities absent in M. sericea), and brachyblasts carry ca 3 flowers (vs 10 or more in M. sericea).

Vernacular.— Nang rong (นางรอง).

Etymology.— The specific epithet refers to the densely ferruginous hairy fruits.

Notes.— Millettia pyrrhocarpa was collected in the same locality by different collectors, but has remained unrecognised as a new species. We found it amongst unidentified collections with other unnamedMillettia specimens, therefore, only when we had identified flowering and fruiting material could we confirm that it was a new species based on the standard having basal callosities tapering into the claw, presenceof ca 3 flowers on the brachyblasts and the fruits covered with densely ferruginous hairs. Because of the ferruginous indumentum on the fruits, the species was compared with the most similar species, M. sericea. It differs from M. sericea in its smaller and thinner leaflets lacking sericeous hairs on the lower surface, and smaller standard petals (8–9 × 8–9 mm vs 10–13 × 10–12 mm in M. sericea), lacking sericeous hairs on their outer surface (vs densely sericeous in M. sericea).

Figure 3.  Millettia suddeei:
 A. Leaves & Inflorescence; B. Component of the flowers, composed of standard (upper), wings (lateral) and keel petals (lower); C. Stamens (drawn from Suddee et al. 5206). Illustrations by Orathai Kerdkaew.

 Millettia suddeei: C. Leaves and inflorescence; D. Part of the inflorescence; E. Papilionaceous flower (Right) and stamens (Left). 

Photos by Naiyana Tetsana

 Millettia suddeei Mattapha & Tetsana, sp. nov.

This species resembles Millettia puerarioides Prain, but differs in having stipels (stipels absent in M. puerarioides), sparsely pubescent hairs on the lower surface of the leaflets (vs densely silky hairs in M. puerarioides), and diadelphous stamens (vs monadelphous in M. puerarioides). It is also characterized by having 7–9 leaflets (vs 5–7 in M. puerarioides), and a standard petal with pubescent hairs on the outer surface (vs densely silky hairs in M. puerarioides). 

Vernacular.— Phi lai somran (พิไลสมราน, หางไหลทุ่งใหญ่).

Etymology.— The epithet refers to Dr. Somran Suddee, who first collected the species.

Sawai Mattapha, Felix Forest, Julie A. Hawkins, Somran Suddee, Naiyana Tetsana and Pranom Chantaranothai. 2019. Three New Species, Lectotypifications and Synonymisations in Millettia (Fabaceae: Faboideae) for Thailand. THAI FOREST BULL., BOT. 47(2); 171–183. DOI: 10.20531/tfb.2019.47.2.07

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