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Mm, widened at apex. Spikelets 4–8 × 1–1.5 mm, yellowish brown or purplish brown; lower glume absent; upper glume lanceolate-oblong to narrowly oblong with slightly falcate apex, obscurely 7–11-veined, midvein usually shortly excurrent; lemma lanceolate-oblong, 3–4 mm, 1-veined; palea absent.

小穗 4-8 * 1-1.5 毫米，黄棕色或带紫色棕色；更低的颖片无；上面颖片披针形长圆形到狭长圆形具稍镰刀形先端，不明显脉，中脉短通常；外稃披针形长圆形，3-4毫米，1脉；内稃缺席。

In this paper, the biological characteristics of florescence, spikelet and inflorescences structure, morphogenesis formation of inflorescence, megasporogenesis and the development of female gametophytes were studied systematically by using anatomy structure, scanning electron microscopic and paraffin section methods. The results were as followed:(1) Phyllostachys praecox was the bamboo flowering fragmentarily; the cultivation changed the characteristic of flowering; the plantlets of flowering were complex and splitted into three kinds: the plantlet flowering before continued flowering; the plantlet flowering before stopped flowering and the plantlet changed into flowering. The inflorescence of Ph. praecox was indefinite inflorescence or called false inflorescence, and actually it was flower stress structure. Its basal unit was pseudospikelet with two kinds: apical spikelet and lateral spikelet. The floret had one lemma, one pelea, three stamens, one pistil and three lodicules.

本研究综合运用形态解剖学、扫描电镜、石蜡切片等技术手段，对雷竹花期生物学特性、小穗与花序构造、花序形态建成过程、大孢子发生与雌配子体发育等进行了较为系统的研究，结果表明：(1)雷竹为零星开花竹种，耕作条件对其开花特性具有重要影响；开花植株类型复杂多样，可以分为以前开过花现在继续开花、以前开过花现在停止开花以及以前未开过花现在转为开花等3种类型；雷竹花序为无限制花序或称&假花序&，实为花枝结构，基本单位为&假小穗&；假小穗有顶生和侧生之分；小花具内外稃各1枚，雄蕊3，雌蕊L，另具3枚大小不等之鳞被。

Upper lemma of sessile spikelet with geniculate 4–6 cm awn; pedicels with golden hairs.

无梗小穗具膝曲的4-6厘米芒的上面外稃；有金色的头发的花梗。

Panicle branches usually scabrid or hispidulous; callus hairs 1/4–1/3(–1/2) lemma length; river banks and floodlands

圆锥花序分枝通常粗糙的或具短硬毛；胼胝体毛1/4-1/3个(-1/2)外稃长度；河岸和河滩地 18

The structures of papilla of lemma among species in 21 Oryza and 2 Leersia were observed by scanning electron microscopy.

在细胞壁表面构筑的介观结构SiO〓具有结构的多样性，可作为植物分类的一种有用指标：用扫描电镜对稻属植物21个种和假稻属植物2个种的外稃表面乳突作了观察。

Glumes 2; lemma many veined, mucronate.

颖片2；外稃很多脉，具短尖。

Sessile spikelet longer than rachis internode; lower glume elliptic-ovate to oblong, papery to leathery, 5–9-veined, marginally 2-keeled, keels pectinately spiny, often winged at apex; upper glume 3-veined, keeled along midvein, otherwise almost flat, often narrowly winged on lower keel; lower floret staminate, palea present; upper floret bisexual, upper lemma entire, awnless.

无梗小穗长于轴节间；下部颖片椭圆状卵形到长圆形，纸质到革质，5-9脉，具刺的2龙骨状，龙骨状的pectinately，通常具翅的在先端的稍微； 3脉的上面颖片，龙骨状沿中脉，几乎平的否则，龙骨状的通常狭翅在下部；雄蕊花的下部的小花，内稃宿存；全缘的上面小花两性，上面外稃，。

Spikelets protogynous, strongly laterally compressed, floret 1, falling entire from pedicel; rachilla extension absent; glumes equal,± equaling and enclosing floret, broadly lanceolate to oblong, membranous to thinly leathery, prominently 3-veined, strongly keeled, keel usually ciliate, infrequently winged, lower margins almost free or connate for up to half their length, apex obtuse, acute or shortly awned; lemma broadly lanceolate to ovate, usually thinly membranous, keeled, obscurely 5-veined, smooth, glabrous, lower margins often connate, awned from lower back, apex truncate to acute; awn straight when short or geniculate when longer, column smooth, usually twisted at maturity, bristle scabrid; palea absent or very small.

雌蕊先熟的小穗，强烈侧面压扁，小花1，从花梗那里变为全缘；小穗轴扩展缺席；颖片等长，多少等长和包围小花，宽披针形的到长圆形，膜质到薄革质，显著3脉，强烈龙骨状，外稃宽披针形的到卵形，直的芒什么时候短或者膝曲长时间，顺利的柱子，通常成熟时扭曲，粗糙的硬毛；内稃缺席或者很小。

Culm internodes initially apically densely pruinose and sparsely gray setose below nodes; leaf blade to 2 cm wide, tessellation distinct; lemma glabrous.

在节点下面节间最初顶部浓密具粉霜和稀少灰色具刚毛的Culm；对2厘米宽的叶片，棋盘花纹离生；外稃无毛。

Culm internodes densely pruinose, sparsely brown setose below nodes; leaf blade to 1.2 cm wide, tessellation indistinct; lemma initially sparsely pubescent.

节间浓密具粉霜的Culm，稀少在节点下面的棕色刚毛；对1.2厘米宽的叶片，棋盘花纹不清楚；最初的外稃疏生短柔毛。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。