[Entomology • 2018] Review of the Bamboo-feeding Genus Agrica Strand (Hemiptera: Cicadellidae: Deltocephalinae), with Description of Two New Species from China

Agrica bisubula

 Luo, Yang & Chen, 2018

DOI: 10.11646/zootaxa.4418.1.4 

Abstract

The bamboo-feeding leafhopper genus Agrica Strand (Cicadellidae: Deltocephalinae) is reviewed. Two new species, Agrica bisubula sp. nov. and A. longispina sp. nov. from China (Guizhou), are described and illustrated. The male genitalia of A. arisana (Matsumura, 1914) are described for the first time. A key is provided to distinguish known species of the genus.

Keywords: leafhopper, morphology, taxonomy, distribution, Hemiptera

Qiang Luo, Lin Yang and Xiang-Sheng Chen. 2018. Review of the Bamboo-feeding Genus Agrica Strand (Hemiptera: Cicadellidae: Deltocephalinae), with Description of Two New Species from China. Zootaxa. 4418(1); 75–84.  DOI: 10.11646/zootaxa.4418.1.4

[Entomology • 2019] Revision of the Bamboo Leafhopper Tribe Mukariini (Hemiptera: Cicadellidae: Deltocephalinae) from the Indian Subcontinent with Description of New Genera and Species

Buloria indica Viraktamath & Webb, 2019

 DOI:  10.11646/zootaxa.4547.1.1

Abstract

Leafhopper genera and species of the tribe Mukariini from the Indian subcontinent are revised. Nine genera and 22 species including two new genera, one new subgenus and 12 new species are dealt with. The new taxa described are Aalinga gen. nov. with its type species Aalinga brunoflava sp. nov. (India: Andaman Islands), Buloria indica sp. nov. (India: Karnataka). Buloria zeylanica sp. nov. (Sri Lanka), Flatfronta bella sp. nov. (India: Karnataka; Bangladesh), Mohunia bifurcata sp. nov. (Myanmar), Mukaria omani sp. nov. (India: Gujarat, Karnataka, Madhya Pradesh), Mukaria vakra sp. nov. (India: Karnataka), Mukariella gen. nov. with its type species Mukariella daii sp. nov. (India: Manipur), Myittana (Benglebra) cornuta sp. nov. (India: Karnataka), Myittana (Myittana) distincta sp. nov. (India: Karnataka), Myittana (Savasa) subgen. nov. with its type species Myittana (Savasa) constricta sp. nov. (India: Andhra Pradesh, Gujarat, Haryana, Himachal Pradesh, Karnataka, Madhya Pradesh, Punjab, Tamil Nadu, Uttarakhand) and Scaphotettix arcuatus sp. nov. (India: West Bengal, Meghalaya, Mizoram). Genera Buloria Distant (new placement), Crispina Distant (new placement) and Myittana Distant (new placement) are placed in the tribe Mukariini. Genus Mohunia is redefined based on the study of its type species. Benglebra Mahmood & Ahmed 1969 is synonymised with Myittana Distant 1908 and considered as its subgenus. Myittana (Benglebra) alami (Mahmood & Ahmed) comb. nov., Myittana (Savasa) bipunctata (Mahmood & Ahmed) comb. nov.. Myittana (Benglebra) introspina (Chen & Yang 2007) comb. nov. and Mukariella bambusana (Li & Chen) comb. nov. are proposed; the first two species were earlier placed in the genus Benglebra, the third species in the genus Mohunia and the fourth in the genus Mukaria. Genera Flatfronta Chen & Li and Myittana are new records for India and Scaphotettix striata Dai & Zhang is a new record for the Indian subcontinent and Sri Lanka. All taxa dealt with are described and illustrated and keys for genera and their species are also given.

Keywords: Hemiptera, Mukariinae, Buloria, Crispina, Myittana, bamboo, morphology

 C.A. Viraktamath and M.D. Webb. 2019. Revision of the Bamboo Leafhopper Tribe Mukariini (Hemiptera: Cicadellidae: Deltocephalinae) from the Indian Subcontinent with Description of New Genera and Species. Zootaxa. 4547(1); 1–69. DOI:  10.11646/zootaxa.4547.1.1

[Botany • 2018] Hsuehochloa calcarea (Poaceae, Bambusoideae, Arundinarieae) • A New Genus of Temperate Woody Bamboos from A Limestone Montane Area of China

Hsuehochloa calcarea (C. D. Chu & C. S. Chao) D. Z. Li & Y. X. Zhang

in Zhang, Ma & Li, 2018.

  DOI: 10.3897/phytokeys.109.27566 

Abstract

Ampelocalamus calcareus is a climbing and slender bamboo, known from south Guizhou, China. This species grows in broadleaved forests of limestone montane areas. Recent molecular phylogenetic analyses demonstrated that A. calcareus was sister to all other lineages of the tribe Arundinarieae rather than a member of Ampelocalamus. The morphological features and habitats of A. calcareus and related genera including Ampelocalamus, Drepanostachyum and Himalayacalamus were compared and discussed. The characteristics of the branch complements, nodes and foliage leaves distinguish A. calcareus from morphologically similar taxa. On the basis of molecular and morphological evidence, we propose to establish a new genus, Hsuehochloa, to accommodate A. calcareus and to honour the late Chinese bamboo taxonomist Chi-Ju Hsueh (Ji-Ru Xue). In addition, we describe the inflorescence of Hsuehochloa for the first time.

Keywords: Ampelocalamus, climbing bamboos, Hsuehochloa, new genus

Figure 1. Hsuehochloa calcarea.
A, B Habit and habitat C Clump D Young culm with white pubescence E, F Branch complement G Culm sheath H Leaves I Inflorescence J Floret

(A–D, G from P. F. Ma & Z. M. Cai 10050 E, F, H from seedlings introduced from Libo, Guizhou, China I, J from P. F. Ma s.n). Scale bars: 5 cm (A–C); 0.5 cm (D, G); 2 cm (E, F); 1 cm (H, I); 1mm (J).

  

Hsuehochloa D. Z. Li & Y. X. Zhang, gen. nov.

Diagnosis: Hsuehochloa resembles genera Ampelocalamus, Drepanostachyum and Himalayacalamus, but differs from those genera by its thin culms (4–5 mm), fewer branches in each branch complement (1, 3–7), inconspicuous nodal sheath scar, falcate auricles and leathery foliage leaves.

Type: Hsuehochloa calcarea (C. D. Chu & C. S. Chao) D. Z. Li & Y. X. Zhang, comb. nov.

Basionym. Ampelocalamus calcareus C. D. Chu & C. S. Chao, 

1983 Acta Phytotax. Sin. 21: 204–206. 

Type: CHINA, Guizhou, Libo, 500 m, C. D. Chu, C. S. Chao, J. Q. Zhang & K. M. Lan 81018 (holotype, NF!; isotype, PE!)

  

Etymology: Hsuehochloa was named in honour of the late Prof. Chi-Ju Hsueh (Ji-Ru Xue in Pinyin transliteration) (1921–1999), a pioneer Chinese botanist on bamboos of SW China and mentor of the senior author in 1983–1986. Hsueh stands for his family name and chloa means grass.

Distribution and habitat: Endemic to south Guizhou, China, under broadleaved forests in a limestone montane area at 500–950 m altitude.

 Yu-Xiao Zhang, Peng-Fei Ma and De-Zhu Li. 2018. A New Genus of Temperate Woody Bamboos (Poaceae, Bambusoideae, Arundinarieae) from A Limestone Montane Area of China. PhytoKeys. 109: 67-76.  DOI: 10.3897/phytokeys.109.27566

[Botany • 2018] Chusquea gouveiensis (Poaceae, Bambusoideae) • A New Species of Chusquea subg. Chusquea from Minas Gerais, Brazil: Morphological Evidence and Phylogenetic Placement within the Euchusquea clade

Chusquea gouveiensis

in Araújo Vidal, Welker, Castro Oliveira, Mota, Oliveira & Clark. 2018.

 DOI: 10.11646/phytotaxa.365.1.3 

Abstract

Chusquea gouveiensis is a new species of tropical woody bamboo from Brazil, herein described and illustrated. It is classified within C. subg. Chusquea, mainly based on its scandent habit, triangular central bud with vertical orientation, extra-or infravaginal branching, and lemma margins free at the apex. The new species is most similar to C. gracilis because they share culm leaves with undifferentiated sheaths and blades with a folded or twisted apex, and foliage leaves and spikelets of similar length. However, C. gouveiensis is distinguished from C. gracilis by having branch complements of 40‒90 usually ascending subsidiary branches (vs. 70‒195 mostly horizontally oriented subsidiary branches), synflorescences weakly paniculate to racemose (vs. paniculate), glumes I and II collectively 0.3‒0.7 mm long (vs. 0.1‒0.2 mm long), and glumes III and IV awned and abaxially pilose to pubescent at the apex (vs. mucronate and glabrous). The two species also differ in distribution: C. gouveiensis is only known from the region of Gouveia and Diamantina, in the southern portion of the Espinhaço Range in Minas Gerais state, Brazil, in forest fragments at 1,200‒1,300 m.a.s.l., whereas C. gracilis occurs in the southern Brazilian states of Paraná, Santa Catarina and Rio Grande do Sul, in mixed ombrophilous forests between 550 and 880 m.a.s.l. Based on nuclear internal transcribed spacer (ITS) and plastid DNA sequence data (ndhF and trnD-trnT), a sixth lineage within the Euchusquea clade was identified, herein named clade VI—Chusquea meyeriana clade, comprising a significant portion of the Brazilian species of Chusquea. The new species has phylogenetic affinities with the C. meyeriana informal group and is also distinct from C. gracilis in the phylogeny.

Keywords: Monocots, Chusqueinae, Espinhaço Range, molecular evidence, taxonomy, woody bamboos

Kaio Vinicius de Araújo Vidal, Cassiano A. Dorneles Welker, Iasmin Laiane de Castro Oliveira, Aline Costa da Mota, Reyjane P. Oliveira and Lynn G. Clark. 2018. A New Species of Chusquea subg. Chusquea (Poaceae—Bambusoideae—Bambuseae) from Minas Gerais, Brazil: Morphological Evidence and Phylogenetic Placement within the Euchusquea clade. Phytotaxa. 365(1); 73–88. DOI: 10.11646/phytotaxa.365.1.3

[Botany • 2017] Gelidocalamus xunwuensis • A New Species (Poaceae, Bambusoideae) from southeastern Jiangxi, China

Gelidocalamus xunwuensis  W.G.Zhang & G.Y.Yang

DOI:  10.3897/phytokeys.85.13804 

Abstract

Gelidocalamus xunwuensis W.G.Zhang & G.Y.Yang, a new species collected from Xunwu County of Jiangxi Province in China, is described and illustrated. The new species is similar to G. stellatus in the habit, but differs by internodes sparsely hairy with granuliferous warts, culm sheath stiffly hairy, culm sheath blade broadly lanceolate to narrowly triangular, each node with a ring of appressed trichomes below, foliage leaves broadly lanceolate to narrowly oblong, and new shoots occurring in late October.

Keywords: Arundinarieae, Bambusoideae, bamboo, leaf epidermis, SEM, taxonomy

Figure 4. Gelidocalamus xunwuensis.
A habitat plants B new shoot C–L detailed characters, show branch and branch sheath (C–D), transection of culm and pith-cavity (E), culm and its leaf sheath (F–J), buds (K) and foliage leaf (L). Scale bar: 5 cm (A–D, F, L), 5 mm (E, G–K).

Gelidocalamus xunwuensis W.G.Zhang & G.Y.Yang, sp. nov.

Diagnosis:  Similar to G. stellatus Wen (1982: 22) in the habit and branch, but differs by culms sparsely hairy (early period) with granuliferous warts (adult or later period), each node with a ring of fulvous appressed trichomes below, culm leaf sheath densely hispidulous with a blade broadly lanceolate and 3–5–paired oral setae, branch sheath glabrous, foliage leaves broadly lanceolate to narrowly oblong, and new shoots late October.

Etymology:  The species epithet xunwuensis refers to the locality of the type specimen: Xunwu County, Jiangxi, China.

Distribution and habitat:  Gelidocalamus xunwuensis occurs under evergreen broad-leaved forests, along ravine, and roadsides at elev. ca. 400–600 m. It grows together with Castanopsis kawakamii Hay., Dicranopteris pedata (Houtt.) Nakaike, Gnetum parvifolium (Warb.) C. Y. Cheng & Chun, Eurya chinensis R. Br., Semiliquidambar cathayensis H. T. Chang, and Ormosia semicastrata Hance. Gelidocalamus xunwuensis is currently known from only one small populations (less than 100 culms) in the southern China.

 Wen-Gen Zhang, Xue-Nan Ji, Yu-Guang Liu, Wei-Jian Li and Guang-Yao Yang. 2017. Gelidocalamus xunwuensis (Poaceae, Bambusoideae), A New Species from southeastern Jiangxi, China. PhytoKeys. 85: 59-67.  DOI:  10.3897/phytokeys.85.13804

[Botany • 2016] Sokinochloa, A New Bamboo Genus (Poaceae - Bambusoideae) from Madagascar

Sokinochloa australis S. Dransf. 

Fig. 3 Sokinochloa australis, taken in the type locality. A non-flowering plant (2003); B flowering plant with inflorescences (2008); C inflorescence (2003); D inflorescence, during anthesis (2008); E inflorescence, probably after anthesis, taken from a different branch of D (2008).

photos: Soejatmi Dransfield.  DOI 10.1007/s12225-016-9650-9

Summary

Sokinochloa, from Madagascar, is described as a new genus. It is characterised by the climbing habit and the determinate, capitulate inflorescence with the presence of subtending bracts; the internodes of the inflorescence are extremely short and there are three or more branches at each node borne at the same level, bearing sterile and fertile spikelets; the fertile spikelet consists of five glumes and one floret. Superficially the capitulate inflorescence resembles that of tropical and subtropical Asian Cephalostachyum Munro (Melocanninae Benth.), which has indeterminate inflorescences. Sokinochloa is included in the subtribe Hickeliinae A. Camus. There are seven species, four of them new, Sokinochloa australis, S. bosseri, S. brachyclada and S. chiataniae, and three new combinations, S. viguieri (A. Camus) S. Dransf., S. perrieri (A. Camus) S. Dransf. and S. chapelieri (Munro) S. Dransf.

Key Words: Capitulum-like inflorescence; endemic; Hickeliinae; new combinations; new species; one-flowered spikelet; sterile spikelet

Soejatmi Dransfield. 2016. Sokinochloa, A New Bamboo Genus (Poaceae-Bambusoideae) from Madagascar. Kew Bulletin. 71:40. DOI: 10.1007/s12225-016-9650-9

[Botany • 2016] Yersinochloa gen. nov. (Gramineae: Bambusoideae-Bambusineae) endemic to the Lam Vien Plateau, southern Vietnam

Yersinochloa dalata 

  H. N. Nguyen & V. T. Tran  DOI: 10.1111/njb.01048

A clambering bamboo endemic to the Lam Vien plateau, southern Vietnam and representing a new monotypic endemic genus, Yersinochloa H. N. Nguyen & V. T. Tran (Gramineae–Bambusoideae–Bambusinae), is described and illustrated. It has an indeterminate inflorescence, terminate leafy branches, pseudo-spikelets with only one perfect floret, unkeeled palea, three lodicules, six stamens with free filaments, anther apices with tiny spines, glabrous ovary with a long style, 3 plumose stigmas, and an oblong caryopsis with a relatively thin pericarp.

  

Hoang Nghia Nguyen and Van Tien Tran. 2016. Yersinochloa gen. nov. (Gramineae: Bambusoideae-Bambusineae) endemic to the Lam Vien Plateau, southern Vietnam. Nordic Journal of Botany.   DOI: 10.1111/njb.01048

In this new paper, the new genus Yersinochloa (Poaceae, Bambusoideae) is proposed to accommodate the new species Yersinochloa dalata found in southern Vietnam. The new genus is warranted by a unique combination of floral characters, i.e. an indeterminate inflorescence, terminate leafy branches, pseudo-spikelets with only one perfect floret, unkeeled palea, three lodicules, six stamens with free filaments, anther apices with tiny spines, glabrous ovary with a long style, 3 plumose stigmas, and an oblong caryopsis with a relatively thin pericarp. A comprehensive overview of the diagnostic characters of the genera Yersinochloa, Cochinchinochloa, Maclurochloa, Soejatmia, Neololeba and Mullerochloa is also provided. 

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[Botany • 2014] Studies in the Recent New Genus Record Pseudostachyum polymorphum (Poaceae: Bambusoideae) from Thailand: notes on its Taxonomy, Distribution and Habitat

Pseudostachyum polymorphum Munro

DOI: 10.1111/j.1756-1051.2012.01792.x

ABSTRACT 

A taxonomic review of the genus Pseudostachyum Munro in Thailand is presented including a description of its morphology, geographic distribution and habitat. An illustrated description of the newly recorded species P. polymorphum Munro, discovered in Thailand, is provided and a doubtful species, P. wakha Brandis ex Camus, is reduced to a synonym of P. polymorphum.

Distribution and habitat: 

The geographic range of P. polymorphum is from tropical to temperate Asia. It is found in highland areas (900–1500 m a.s.l.) of India, Bhutan, China, Burma and Vietnam (Stapleton 1994, Ohrnberger 1999, Xia and Stapleton 2006). We have discovered four additional populations of P. polymorphum in Thailand living at altitudes of 900–1300 m a.s.l. in Phu Rua National Park, Phu Luang Wildlife Santuary, Phu Kradung National Park, Loei pro vince and Phu Hin Rong Kla National Park, Phitsanulok province. This species inhabits only semi-shaded areas, forest edges and gaps of lower montane forest.

Atchara Teerawatananon, Sarawood Sungkaew, Dokrak Marod and Trevor R. Hodkinson. 2014. Studies in the Recent New Genus Record Pseudostachyum (Poaceae: Bambusoideae) from Thailand: notes on its Taxonomy, Distribution and Habitat. Nordic Journal of Botany. DOI: dx.doi.org/10.1111/j.1756-1051.2012.01792.x

[Botany • 2013] Cochinchinochloa braiana • A New Bamboo Genus (Gramineae: Bambusoideae-Bambusineae) Endemic to Braian mountain, Lamdong Province, southern Vietnam

Fig. 2 Cochinchinochloa braiana H.N.Nguyen & V.T.Tran.
a. Habitat; b. rhizome with short necks; c. branches with middle one dominant; d. internode with thick swollen patella and bud; e. base of culm leaf; f. leafy flowering branch; g. section of leafy branch with under leaves surface; h. section of leafy branch with upper leaves surface; i. section of internode of leafy branch with thick swollen patella; j. stigmas; k. lodicules; l. ventral view of culm leaf with auricles; m. dorsal view of culm leaf; n. culm leaf; o, p. section of flowering branches; q, r. pseudospikelets with two florets; s. 2-keeled, grooved palea; t. lodicules and stamens; u. floret; v. caryopsis.

 Photos: Tran Van Tien from the type locality

Abstract

A clambering bamboo endemic to Braian mountain, southern Vietnam represents a new monotypic endemic genus, Cochinchinochloa H.N.Nguyen & V.T.Tran (Gramineae: Bambusoideae-Bambusinae), which is described and illustrated. Its culm nodes and the nodes of leafy branches exhibit a thick swollen patella, and in the reproductive state this taxon bears pseudospikelets having two perfect florets, with an elongated rachilla internode between the perfect florets, a rachilla extension bearing an imperfect floret at maturity, a narrowly 2-keeled palea with a distinct abaxial groove, three lodicules, six stamens, free filaments, a glabrous ovary with a long style and three stigmas, and an oblong caryopsis with a relatively thin pericarp.

Keywords: Bambusoideae, Bambusinae, Cochinchinochloa, Cochinchinochloa braiana, New Genus, Taxonomy

 Cochinchinochloa braiana H.N.Nguyen & V.T.Tran. 

Cochinchinochloa H.N.Nguyen & V.T.Tran, gen. nov. — Fig. 1

 Type species. Cochinchinochloa braiana H.N.Nguyen & V.T.Tran.

 Etymology. The generic epithet refers to the Cochinchine area (southern Vietnam, which includes Braian mountain, Lamdong Province where the species is located), and -chloa: grass. The specific epithet refers to the type locality, Braian mountain, Di Linh District, Lamdong Province, Vietnam.

Nguyen, H.N.; Tran, V.T.; Hoang, T.T. 2013. Cochinchinochloa (Gramineae: Bambusoideae-Bambusineae), A New Bamboo Genus Endemic to Braian mountain, southern Vietnam. Blumea - Biodiversity, Evolution and Biogeography of Plants, 58(1); 28-32(5).

DOI: http://dx.doi.org/10.3767/000651913X669068