1 |
Spikes bisexual or unisexual and bisexual |
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(2) |
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Spikes unisexual, terminal spike male, lateral spikes female, usually solitary in an involucral bract sheath, rarely 2 or 3 spikes borne in an involucral bract sheath, 1 spike male, 1 or 2 spikes female, rarely with few male flowers at apex |
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(4) |
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2 (1) |
Spikes bisexual, androgynous, 10-20 or more disposed in a narrow and rather long panicle; utricles laxly hispidulous. |
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247 C. hirtiutriculata |
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Spikes unisexual and bisexual, terminal spike and terminal spike of partial panicles usually bisexual, androgynous or gynaecandrous, remaining spikes female, sometimes with few male flowers |
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(3) |
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3 (2) |
Spikes 2 or 3, usually solitary in an involucral bract sheath, terminal spike androgynous, lateral spikes female or sometimes with few male flowers; utricles hispidulous on upper part. |
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248 C. wutuensis |
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Spikes numerous, disposed in a panicle, terminal spike of partial panicles bisexual, gynaecandrous, remaining spikes female; utricles glabrous. |
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249 C. fastigiata |
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4 (1) |
Spikes usually 3 borne in an involucral bract sheath, 1 spike male and 2 spikes female, rarely with few male flowers at apex of female spikes, spikes only solitary in lowermost 1 or 2 involucral bract sheaths, 2 male spikes in uppermost, male spikes linear, 3-5.5 cm; female and male glumes purple-brown. |
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250 C. purpureosquamata |
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Spikes solitary in an involucral bract sheath, terminal spike male, clavate or narrowly lanceolate, not up to 3 cm (only C. finitima with male spike linear, ca. 5 cm), lateral spikes female; female and male glumes brownish yellow or brown-yellow |
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(5) |
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5 (4) |
Male spike linear, to 5.5 cm, female spikes linear-cylindric, to 12 cm; female glumes ovate, ca. 1/2 length of utricle. |
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251 C. finitima |
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Male spike clavate or narrowly lanceolate, not up to 3 cm, female spikes cylindric or oblong, 2-6 cm; female glumes oblong, narrowly oblong, ovate-lanceolate, or ovate, ca. 2/3 length of utricle or more |
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(6) |
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6 (5) |
Female spikes oblong, 2-3.5 cm, loosely 4-6-flowered; female glumes ovate; utricles obovate; nutlets obovate. |
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252 C. baohuashanica |
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Female spikes cylindric, 3-6 cm, loosely many flowered; female glumes oblong, narrowly oblong, or ovate-lanceolate; utricles narrowly oblong or lanceolate; nutlets narrowly oblong or oblong |
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(7) |
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7 (6) |
Female glumes ovate-lanceolate; utricles lanceolate, 6-7 mm, glabrous; style longer than utricle. |
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253 C. bostrychostigma |
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Female glumes oblong or narrowly oblong; utricles narrowly oblong, ca. 4.5 mm, loosely hispidulous on 2 lateral veins and margins of beak; style shorter than utricle. |
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254 C. deqinensis |
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