[Botany • 2015] Acranthera burmanica • A New Species of Rubiaceae from Kachin State, Myanmar

Acranthera burmanica 

Y. H. Tan & B. Yang 

DOI:  10.11646/phytotaxa.238.1.5

Abstract

Acranthera burmanica, a new species of Rubiaceae from Kachin, Myanmar, is here described and illustrated. It is morphologically similar to A. sinensis, but can be easily distinguished from the latter by its stem and branches densely strigose throughout; ovate leaves; calyx distinctly shorter than corolla tube, lobes lanceolate, apex attenuate; stipules triangular, apex acute not cuspidate; lower part of filaments connate into a tube.

Keywords: Acranthera, biodiversity, Kachin, morphology, Myanmar, taxonomy, Eudicots

Acranthera burmanica A. Habit. B. Stipule and Flower branch. C. Peduncle. D, F. Bracts. E. Flower bud. G. Inforescences. H. Corolla (adaxial view). I. Calyx. J. Opened corolla. K–L. Stamens. M. Pistil. N–P. Ovary portion.

Photographed by Yun-Hong Tan.  DOI:  10.11646/phytotaxa.238.1.5 

Acranthera burmanica Y. H. Tan & B. Yang, sp. nov. 

Diagnosis: Acranthera burmanica is similar to A. sinensis C. Y. Wu (1957:295), differing from the latter by its stem and branches densely strigose throughout (vs. glabrescent when aged); ovate to ovate-lanceolate leaves (vs. elliptic or obovate); calyx distinctly shorter than corolla tube (vs. equal to corolla tube), calyx lobes lanceolate (vs. linear-lanceolate), apex attenuate (vs. acuminate); stipules triangular, apex acute not cuspidate (vs. broadly ovate to triangular, glabrescent, cuspidate); lower part of filaments connate into a tube (vs. free).

Distribution:— Acranthera burmanica is endemic to Myanmar and known from Kachin State, Putao, where it grows in the understory in tropical rain forests and tropical mountain forests, at an elevation of ca. 900–1500 m.

Yun-Hong TAN, Bin YANG, Jian-Wu LI, Shi-Shun ZHOU, Shwelone Shwelone, Kyi Kyi Khaing, Ren LI, Jian-Ping HUANG and Hang SUN. 2015. Acranthera burmanica, A New Species of Rubiaceae from Kachin State, Myanmar. Phytotaxa.  DOI:  10.11646/phytotaxa.238.1.5

http://m.extbg.cas.cn/conservationhorticulture/201512/t20151221_157678.html

       

[Botany • 2015] Bulbophyllum mengyuanense • A New Species of Bulbophyllum sect. Stachysanthes (Orchidaceae; Epidendroideae; Dendrobiinae) from Xishuangbanna, southeastern Yunnan, China

Bulbophyllum mengyuanense 

  Q.Liu, J.W.Li & X.H.Jin 
  DOI: 10.11646/phytotaxa.236.3.11

Abstract

Bulbophyllum Thouars (1822: 3) is one of the largest orchid genera, including more than 1900 species widely distributed from tropical America, Africa, Madagascar, and mainland Asia to Australasia (Lindley 1830, Pearce & Cribb 2002, Seidenfaden 1979, 1992, Chen et al. 2009, Pridgeon et al. 2014). The species possess a wide range of vegetative form and floral structure (Bose et al. 1980). There are about 103 species (33 endemic) in 18 sections in China (Chen et al. 2009).

Section Stachysanthes (Blume ) Averynov (1994: 276) is distinguished by inconspicuous pseudobulbs and includes 72 species. There are five species (three endemic) of section Stachysanthes in China (Tsi 1999, Chen et al., 2009). During our fieldwork in Mengla County of Xishuangbanna, southeastern Yunnan, a new species of Bulbophyllum of sect. Stachysanthes was found in the limestone forest and described below.

Keywords: Bulbophyllum, Orchidaceae, Epidendroidea, Dendrobiinae, Monocots, China

FIGURE 2. Bulbophyllum mengyuanense.
A. Habitat. B. Front view of flower. C. Lateral view of flower. D. Plant

  Photo by Q. Liu  

Taxonomy 

Bulbophyllum mengyuanense Q.Liu, J.W.Li & X.H.Jin, sp. nov. (Figs. 1, 2) 

Type:— China. Yunnan: Mengla County, Mengyuan Town, limestone forest, 1000 m, 7 Oct. 2010, Li 1099 (holotype, HITBC!). 

Diagnosis: Bulbophyllum mengyuanense is similar to B. drymoglossum and B. hainanense, but can be distinguished from them by having yellow flowers with purple stripes, lateral sepals connate in their basal third, conspicuous column stelids and a labellum without a callus.

Qiang Liu,  Jian-Wu Li, Xiao-Hua Jin and Jiang-Yun Gao. 2015. A New Species of Bulbophyllum (Orchidaceae; Epidendroideae; Dendrobiinae) from Yunnan, China.
 Phytotaxa. 236 (3): 287–290.  DOI: 10.11646/phytotaxa.236.3.11

http://english.xtbg.cas.cn/gh/lg/201602/P020160221395635641410.pdf

[Botany • 2012] Panisea moi • A New Species (Orchidaceae: Epidendroideae) from Hainan, China

Panisea moi 

 M.Z.Huang, J.M.Yin & G.S.Yang

Photograph by Ming-Zhong Huang
 XTBG.cas.cn DOI:  10.11646/phytotaxa.60.1.3

Abstract

A new species, Panisea moi (Orchidaceae: Epidedroideae: Coelogyninae) from Mount Wuzhi and Mount Jianfengling of Hainan Island is described and illustrated. The most significant differences from the closest species, P. vinhii, are that P. moi has subentire labellum, two longitudinal labellum keels that extend from middle of the hypochile to 2/3 of the length of the epichile and thickened at the ends; the rachis is also straight.

Keywords: Chinese Orchidaceae, Coelogyninae, China, Monocots

Panisea moi M.Z.Huang, J.M.Yin & G.S.Yang, sp. nov. (Fig. 1–2)

Species P. vinhii Aver. et Averyanova affinis, sed labello subintegro, carinis longioribus, e medio hypochili ad 2/3 epichili extenso, extrama carinarum inflatis differt.

Distribution and habitat:— Panisea moi grows on trunks of tall trees in the jungle or on shrubs on hill crests at 1200–1850 m elevation. It is known from Mount Wuzhi and Mount Jianfengling on Hainan Island.

Phenology:— The new species is in flower in March with fruiting in September.

Etymology:— The specific epithet honors the first author’s tutor Prof. Rao Mo (1963–2012), who focused his life on the breeding of orchids and other tropical ornamental plants on Hainan Island.

Ming-Zhong Huang, Jun-Mei Yin, Guang-Sui Yang and Yun-Hong Tan. 2012. Panisea moi, A New Species (Orchidaceae: Epidendroideae) from Hainan, China. Phytotaxa.  60(1); 13–16.  DOI:  10.11646/phytotaxa.60.1.3

http://english.xtbg.cas.cn/gh/lg/201209/t20120917_91102.html

http://english.xtbg.cas.cn/gh/lg/201209/P020120917541888549362.pdf

[Botany • 2016] An Expansion of the Genus Deinostigma (Gesneriaceae) in Vietnam and China

ABSTRACT

 Based on molecular, morphological and cytological studies the previously monotypic genus Deinostigma W.T.Wang & Z.Y.Li has been expanded to include several species previously ascribed to Primulina Hance. Deinostigma now comprises seven species, including one previously placed in synonymy. The new combinations Deinostigma cicatricosa (W.T.Wang) D.J.Middleton & Mich.Möller, Deinostigma cycnostyla (B.L.Burtt) D.J.Middleton & H.J.Atkins, Deinostigma cyrtocarpa (D.Fang & L.Zeng) Mich.Möller & H.J.Atkins, Deinostigma eberhardtii (Pellegr.) D.J.Middleton & H.J.Atkins, Deinostigma minutihamata (D.Wood) D.J.Middleton & H.J.Atkins and Deinostigma tamiana (B.L.Burtt) D.J.Middleton & H.J.Atkins are made. Deinostigma eberhardtii is lectotypified. The genus is defined by a combination of an alternate leaf arrangement, hooked hairs on many plant parts, flowers with the pedicel inserted at an angle and off-centre on the receptacle, and, where known, a somatic chromosome number (2n) of < 36. This new circumscription of the genus expands its distribution from Vietnam into South China.

Keywords. Molecular phylogeny, ovary morphology, Primulina, taxonomy

M. Möller, K. Nishii, H.J. Atkins, H.H. Kong, M. Kang, Y.G. Wei, F. Wen, X. Hong and D.J. Middleton. 2016. An Expansion of the Genus Deinostigma (Gesneriaceae). Gardens’ Bulletin Singapore. 68(1): 145–172.

sbg.org.sg/images/4_4_Research_Gardens_Bulletin/4_4_68_1_pdf_Vol_68_Part_1_2016/4_4_68_1_145_y2016_V68P1_GBS_pg145.pdf

http://www.genera-gesneriaceae.at/genera/deinostigma.htm

[Botany • 2008] Musa zaifui sp. nov. (Musaceae) from Yunnan, China

The center of diversity of the genus Musa (Musaceae) is in southeast Asia, a region not studied in detail and where new species and varieties are reported continously. Here, a new wild banana species Musa zaifui Häkkinen & H. Wang from Yunnan, China, is described and illustrated. These studies are based on observed morphological characteristics in the field and from cultivated plants in the Xishuangbanna Tropical Botanical Garden. Musa sect. Rhodochlamys in west Yunnan and east Myanmar have a rich diversity caused by their hermaphroditic flowers in which self-pollination takes place before the bracts open. This habit has evolved in response to their isolation in different watersheds and the lack of proper pollinators. The seeds of these plants’ fruits are dispersed in the local area by small mammals. Hybrids are very seldomly encountered due to self-pollination. Musa zaifui is only observed in a wet ditch covered with secondary forest on the eastern bank of Da Yingjiang River, on the way from Yingjiang to Longchuan (about 50 km from Yingjiang), Dehong District, west Yunnan. A key to M. zaifui and related taxa is provided.

Musa zaifui sp. nov. (Musaceae) from Yunnan, China

http://english.xtbg.cas.cn/rh/ss/hm/200808/t20080820_27748.html

Häkkinen, M. & H. Wang. 2008. Musa zaifui sp. nov. (Musaceae) from Yunnan, China. Nordic J. Bot. 26:42–46. http://onlinelibrary.wiley.com/doi/10.1111/j.0107-055X.2008.00267.x/abstract

[Botany • 2008] Musa aurantiaca • A taxonomic revision of Musa aurantiaca Baker (1893) (Musaceae) in Southeast Asia

Living specimen of Musa aurantiaca 

Abstract  

Since the initial description, the name  Musa aurantiaca   has been unclear to most botanists. The aim of this study is to settle its true identity and to update the description. The plant is distributed in the regions of Upper Assam and Arunachal Pradesh, India, Northern Myanmar and Tibet, China where it occurs commonly but it is not mentioned in Chinese literature at all. In this paper, the authors also review the description and the literature history of M. aurantiaca from 1893 to the present. Musa aurantiaca Baker is typified here. 

Key words  Musa, Musa aurantiaca, Musaceae, Southeast Asia, wild banana.

Living specimen of Musa aurantiaca at XTBG. 

3 - inflorescence Photo: M. Häkkinen. ; insert - fruits

Häkkinen, M., and H. Väre. 2008. A taxonomic revision of Musa aurantiaca (Musaceae) in Southeast Asia. Journal of Systematics and Evolution (formerly Acta Phytotaxonomica Sinica) 46: 89-92. http://www.plantsystematics.com/qikan/manage/wenzhang/aps07056.pdf