曲膝

Spikelets 3.8–4.5 mm, usually purple tinged; glumes glabrous, veins scaberulous; lower glume 2.5–3 mm, 3–5-veined; upper glume as long as spikelet, 5-veined; lower floret staminate, as long as lower glume; upper floret 2.2–3 mm, lemma apex subentire, awned; awn geniculate with brown twisted column, 2.7–5 mm; callus hairs ca. 1/2 length of lemma.

小穗3.8-4.5毫米，通常，紫色微染；颖片无毛，脉；更低的颖片2.5-3毫米，3-5脉；上面颖片倍于小穗，5脉；雄蕊花的下部的小花，倍于更低的颖片；上面小花2.2-3毫米，外稃先端，具芒；用棕色的盘旋的柱子，2.7-5毫米膝曲的芒；约的胼胝体毛1/2段外稃。

Racemes (4–)10–40(–100),(8–)10–30 cm; rachis internodes glabrous, scaberulous or smooth, nodes glabrous; lower pedicel 0.5–1.5 mm, upper pedicel 1.5–4 mm. Spikelets 4–6.5 mm, pilose or glabrous, awned; callus hairs 5–8 mm, exceeding the spikelet; glumes subequal, membranous, 4–6.5 mm, 5-veined, back glabrous or pilose, puberulous at apex and along upper margins, apex acuminate; lower lemma lanceolate, hyaline, 3.5–4 mm, veinless, apex and margins puberulous, otherwise glabrous; upper lemma similar to lower, 2.5–3.5 mm; awn geniculate, 4–12 mm; upper palea a 1–2 mm scale.

总状花序(4-)10-40(-100)，(8-)10-30厘米；轴节间的无毛，微糙的或平滑，节点无毛；更低的花梗0.5-1.5毫米，上面花梗1.5-4毫米小穗4-6.5毫米，具柔毛或无毛，具芒；胼胝体毛5-8毫米，超过小穗；颖片近等长，膜质，毫米，5－脉，背无毛或具柔毛，被微柔毛在先端和沿着上面边缘，先端渐尖；披针形，透明的下部外稃，3.5-4毫米，无脉，被微柔毛的先端和边缘，或无毛；类似于上面外稃降低，2.5-3.5毫米；膝曲的芒，4-12毫米；上面内稃一1-2毫米鳞片。

Spikelets 5–6.5 mm, green tinged purple; glumes glabrous or rarely setose, scaberulous along veins; lower glume 4.5–5.5 mm, 3 (–5)-veined; upper glume 5-veined; lower floret staminate or barren, shorter than glumes or equaling lower glume; upper floret 2.5–3 mm, lemma apex awned, awn flanked by 2 slender erect bristles; bristles mostly 1–2.5 mm; awn geniculate with brown twisted column, 6–10 mm; callus hairs 1/4–1/3 length of lemma.

微染的小穗5-6.5毫米，绿色紫色；颖片无毛的或很少具刚毛，微糙的沿脉；更低的颖片4.5-5.5毫米，3(-5)脉；上面颖片5脉；无意义的下部小花雄蕊花或，短于颖片或等长下部的颖片； 2纤细的直立刚毛从侧面包围的上面小花2.5-3毫米，外稃先端具芒，芒；多数的刚毛1-2.5毫米；用棕色的盘旋的柱子，6-10毫米膝曲的芒；胼胝体毛1/4-1/3段外稃。

Culms to 9 m, to 4 cm in diam., usually geniculate at basal 2 or 3 nodes of slender culms; internodes to 40 cm, initially white powdery, pubescent or scabridulous with tubercles left by fallen hairs; nodal ridge slightly more prominent than sheath scar.

秆给9米，在4厘米直径，在纤细的秆的基部的2或3 节点通常膝曲； 40厘米节间，有疣最初白色粉状，青春期或者微糙以下降的头发离开；节的脊比鞘痕突出的稍。

Sessile spikelet dorsally compressed; callus very short, obtuse, shortly bearded; lower glume cartilaginous, broadly convex to slightly concave, flanks rounded, keeled toward apex, apex acute to obtuse; upper glume boat-shaped, dorsally keeled; lower floret reduced to a small empty hyaline lemma; upper lemma stipitiform, entire, awned from apex; awn geniculate, glabrous or puberulous.

背的无梗小穗压扁；胼胝体非常短，钝，短具髯毛；更低的颖片软骨质，对稍凹，侧面圆形，龙骨状的向先端，先端锐尖到钝宽凸；上面颖片舟状，背龙骨状；更低的小花退化至一小的空的透明的外稃；上面外稃柄状，全缘，从那里先端；膝曲的芒，无毛或被微柔毛。

Sessile spikelet subterete; callus long, pungent, bearded; lower glume leathery, obtuse; upper glume awnless; lower floret reduced to a hyaline lemma; upper lemma stipitiform, entire, passing into a stout geniculate awn with hairy column.

无梗小穗近圆柱状；胼胝体长，锐尖，具髯毛；更低的颖片革质，钝；上面颖片awnless；更低的小花退化至一透明的外稃；膝曲的柄状，全缘，度过的上面外稃成为一粗壮具有毛柱状。

Stamens 8 or 10, distinct, alternately unequal in length; filaments ± abruptly dilated toward base,± straight or geniculate. Disk columnar, conic, bell-shaped, or ± hourglass-shaped. Gynoecium (2-)4- or 5-loculed, syncarpous; radial walls of locules straight; ovules 2 per locule; style 0.5-2.5 × as long as ovary, deciduous in fruit.

雄蕊8或10，离生，交替不等长；花丝在基部多少突然膨大，多少直立或膝曲；花盘柱状，圆锥状，铃状，或多少沙漏状；雌蕊群(2-)4或5室，合心皮；子房室径壁直；每室胚珠2；花柱0.5-2.5 *等长于子房，在果期落叶。

Spikelets with 1 floret (to 3 in Duthiea ), terete or laterally compressed, disarticulating above glumes; rachilla extension usually absent (present in Stephanachne , Sinochasea , and Duthiea ); glumes equaling or longer than floret, persistent, hyaline to membranous, 1–7-veined; floret callus obtuse to pungent; lemma rounded on back, membranous to leathery, firmer than glumes, often indurated at maturity, 3–9-veined, often enclosing palea, apex entire or 2-toothed, awned from apex or between teeth; awn straight or geniculate, glabrous, pubescent or plumose; palea subequal to lemma, hyaline to membranous, usually 2-veined (5–7-veined in Psammochloa ) but not keeled, apex usually acute.

小穗具1小花(对3在Duthiea里)，圆柱状的或侧面压扁，高于颖片脱节；小穗轴扩展通常无(在Stephanachne，Sinochasea 和Duthiea里提出)；颖片等长或更长于小花，宿存，到膜质，1-7脉；对刺激愚蠢的小花结茧；外稃在后面上绕行，膜质到革质，比颖片坚定，芒直或者膝曲，无毛，青春期或者羽状；内稃近等长于外稃，透明的到膜质，通常2脉的(在Psammochloa里的5-7脉)但不是翻转，先端通常厉害。

Spikelets 6.5–9 mm, florets 3, uppermost reduced, green or violet tinged; rachilla densely pilose; glumes unequal, keel scabrid, margins narrowly hyaline, apex acuminate-aristulate, lower glume lanceolate, 4–5 mm, 1-veined, upper glume elliptic, 5–6.5 mm, 3-veined; callus hairs ca. 0.8 mm; lowest lemma 6.5–7 mm, upper part often violet-colored, keel scabrid, apex 2-toothed; awn 12–16 mm, geniculate or rarely recurved; palea subequal to lemma.

小穗6.5-9毫米，小花3，退化，绿色的或紫罗兰色微染的最上部的；小穗轴密被柔毛；颖片不同的事物，翻转，狭给镶边，先端渐尖具小芒，约的胼胝体毛0.8毫米；低外稃6.5-7毫米，紫色有色，龙骨状粗糙的上半部分通常，先端2齿；芒12-16毫米，膝曲的或很少下弯；内稃近等长于外稃。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。