卵花甜茅Glyceria tonglensis C. B. Clarke

别名：卵花水甜茅;

科名：禾本科 Gramineae

属名：甜茅属 Glyceria

《中国植物志》第9(2)卷328页
  7．卵花甜茅（禾本科图说）图版40：5-8
  Glyceria tonglensis C. B. Clarke in Journ. Linn. Soc. Bot. 15: 119. 1876; Hook. f., Fl. Brit. Ind. 7: 346. 1897; Hand. -Mazz. , Symb. Sin. 7: 1285. 1936; Bor, Grass. Burma Ceyl. Ind. Pakist. 571. 1960; 中国高等植物图鉴5: 51, 819. 1976. ——Glyceria caspica Griseb. in Goett. Nachr. 76. 1868. non Trin. 1836. ——Glyceria kashmiriensis Kelso in Rhodora 37, 262. 1935. ——Glyceria tonglensis C. B Clarke var. ovatiflora(Keng)Keng f. in Acta Bot. Yunnanica 4(3): 274. 1982, syn. nov. ——Glyceria ovatiflora Keng ex Keng f. in 1. c. 273. 1982. ——Glyceria ovatiflora Keng, 中国主要植物图说·禾本科250. 1959, sine descr. latin.
  多年生。秆直立丛生或基部匍匐，节处生根，高10-50（75)厘米，直径1-2毫米，具3-6节；叶鞘闭合几达鞘口，光滑无毛，上部者短于节间；叶舌膜质，长1-3毫米，顶端截平或蚀齿状；叶片扁平，长6-10厘米，宽2-3.5 (5)毫米，常直立，上面稍粗糙，下面近光滑。圆锥花序紧缩或稍开展，长10-20厘米，下部各节具2-4分枝；分枝直立或上升，粗糙，基部主枝长达8.5厘米；小穗灰绿色，顶端稍带紫褐色，含(4) 5-8小花，长4.2-9毫米；颖膜质，卵形至卵状长圆形，顶端尖或钝，具1脉，第一颖长1-2 (2.5)毫米，第二颖长1.8-2.8毫米；外秤硬纸质，卵状长圆形，顶端钝，具狭窄膜质边缘，有明显隆起的7脉，第一外稃长 2.8-3.2毫米；内稃硬纸质，等于或稍短于外稃，顶端稍截平，背部呈弯弓形，脊上部具极狭的翼，翼缘粗糙；雄蕊3，花药带紫色，长约1毫米。颖果约1.3毫米，具腹沟。花期5-6月，果期7-9月。染色体x＝10（Mehra et Sharma 1977，Parkash 1979）。
  产安徽、江西、四川、云南。生于海拔1500-3600米的疏林下、潮湿处、山坡、灌丛、草地、溪边及沼泽中或池塘边、路旁、水沟中。分布于喜马拉雅西北部、克什米尔、锡金、缅甸、日本。模式标本自印度大吉岭和唐格罗。

《Flora of China》 Vol. 22 (2006)
Glyceria tonglensis  C. B. Clarke
卵花甜茅   luan hua tian mao
Glyceria kashmiriensis Kelso; G. ovatiflora Keng ex P. C. Keng; G. tonglensis var. ovatiflora (Keng ex P. C. Keng) P. C. Keng.
Perennial, tufted or shortly creeping. Culms ascending, 10–50(–75) cm tall, 1–2 mm in diam. Leaf sheaths slightly keeled, smooth or scaberulous, upper shorter than internodes; leaf blades flat or folded, 6–15 cm × 2–3(–5) mm, smooth or scaberulous, abruptly acute; ligule 0.7–1(–3) mm. Panicle narrow and contracted when young, later open, 10–27 cm; branches 2–4 at lower nodes, erect at first, later spreading or deflexed, smooth, longest bearing up to 14 spikelets. Spikelets narrowly elliptic-oblong, 6–9 mm, florets 4–8, gray-green or tinged purplish brown; glumes ovate to ovate-oblong, membranous, 1-veined, lower glume 1–2 mm, upper glume 1.8–2.8 mm, apex acute; lemmas ovate-oblong, 2.8–3.6 mm, firmly papery, minutely granular, 7-veined, veins scaberulous, apex membranous, obtuse, often slightly crenulate; palea as long as lemma, keels thick, wingless, scabrid. Stamens 3, anthers 0.85–1 mm. Fl. and fr. Jul–Sep.
Marshy ground in forests, wet grassy places under shrubs, streams, ditches; 1500–3600 m. Anhui, Guizhou, Jiangxi, Sichuan, Xizang, Yunnan [Bhutan, India, Kashmir, Myanmar, Nepal].
The name Glyceria tonglensis has been misapplied to G. ischyro-neura Steudel, which occurs from Japan and S Korea northward to the S Kuril Islands. This is a very similar species, distinguished by its shorter (2–2.8 mm), ovate lemmas, shorter anthers (0.5–0.7 mm), more strongly convex palea keels, and strongly sinuous rachilla. It has been reported in the literature from NE China, but its presence there has not been confirmed.