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| 1 |
Culms 35-55 cm tall; leaf blades 8-20 mm wide; spikes 2-6, cylindric, 4-6 cm, 3-5 mm thick; peduncles short, enclosed in involucral bract sheath; utricles glabrous; style base not thickened. |
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121 C. courtallensis |
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Culms not exceeding 30 cm tall; leaf blades 2-5 mm wide or filiform; spikes 1-5, ovate to cylindric, 3-40 mm, 2-6 mm thick; peduncles slender, exserted from involucral bract sheath; utricles pubescent, hispidulous, or glabrous; style base thickened |
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(2) |
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| 2 (1) |
Culms short, shorter than leaves; involucral bract leaf setaceous or scalelike; utricles 2-2.5 mm; style densely brown granular-punctate |
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(3) |
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Culms long, longer than or equaling leaves; involucral bract leaflike; utricles 3.5-6.5 mm; style smooth or hairy, sometimes style and nutlets granular-punctate |
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(4) |
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| 3 (2) |
Culms obtusely trigonous, filiform, not exceeding 0.5 mm thick; involucral bract leaf setaceous; spikes ovate or ovate-oblong, 2-5 mm; style flat. |
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122 C. tsoi |
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Culms flat, ca. 1 mm thick; involucral bract leaf scalelike; spikes cylindric, 5-10 mm; style cylindric. |
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123 C. planiscapa |
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| 4 (2) |
Leaves subleathery, stiff; culms robust, stiff |
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(5) |
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Leaves herbaceous, soft; culms thin |
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(7) |
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| 5 (4) |
Spikes ovate, 2.5-3 cm, 8-10 mm thick; utricles 6-6.5 mm. |
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133 C. pterocaulos |
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Spikes cylindric, 2.5-4.5 cm, 5-6 mm thick; utricles not surpassing 5.5 mm |
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(6) |
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| 6 (5) |
Leaf blades flat, 3-4 mm wide; utricles ovate; nutlets smooth. |
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131 C. caudispicata |
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Leaf blades linear, ca. 1 mm wide; utricles elliptic or oblong; nutlets granular-punctate on surface. |
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132 C. anningensis |
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| 7 (4) |
Spikes 4-6, lowermost one remote, others approximate, peduncles rather short, enclosed in involucral bract sheath, except lowermost one. |
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124 C. cylindrostachys |
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Spikes 1-3, remote, borne at middle part or base of culm, except terminal spike, long pedunculate and exserted, male flower part usually shorter than or nearly equaling female flower part |
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(8) |
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| 8 (7) |
Culms and leaves hispidulous; culms, female glumes, and utricles granular-punctate on surface; style thickened, globose. |
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125 C. chlorocephalula |
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Culms and leaves glabrous; culms, female glumes, and utricles not granular-punctate on surface; style base thickened |
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(9) |
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| 9 (8) |
Spikes ovate; lower female glumes with a rather long or short awn at apex |
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(10) |
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Spikes oblong to cylindric; female glumes without an awn at apex |
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(11) |
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| 10 (9) |
Utricles hispidulous; style pubescent; spikes 5-8 mm. |
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126 C. chuana |
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Utricles glabrous; style smooth; spikes 8-20 mm. |
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127 C. delavayi |
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| 11 (9) |
Leaves linear, blades 1-1.5 mm wide; utricles obovate-oblong, 4-4.2 mm; nutlet and style granular-punctate on surface. |
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130 C. tsaiana |
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Leaves flat, blades 2-10 mm wide; utricles oblong or obovate; nutlet and style smooth |
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(12) |
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| 12 (11) |
Utricles oblong, 4-5 mm, green, thinly few veined, pubescent, eventually glabrescent; style base slightly thickened; leaf blades 4-10 mm wide. |
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128 C. speciosa |
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Utricles obovate, ca. 4 mm, yellowish brown, thickly several veined, glabrous; style base thickened, conic; leaf blades 2-4 mm wide. |
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129 C. funhuangshanica |
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