314 CLVI. CYPERACEZ (CLARKE). [ Cyperus. 
b. ALATE.—Rhachilla obviously winged. Each marginal base of the glume 
is decurrent on the rhachilla; the glume falls off, leaving this ovate or lanceolate 
marginal base on the rhachilla—the “ wings of the rhachilla ”—which themselves are 
persistent or late deciduous or very early caducous, and are scarious, white, yellow, 
brown or pinkish. 
§ xiii, Tuntcat#.—Leafy. Stolons exceedingly slender, disappearing after the 
bulbs are formed on them. Bulbs clothed (tunicate) when ripe by a tough black coat ; 
flower-stem of the second year, springing from a bulb, 
Bulbs more than 4 in. in diam, ; umbel condensed into 
a dense head of 30 spikelets 
Bulbs less than 4 in. in diam. 
Inflorescence of 6 spikelets in one spike, nowise 
~ 
77. C. grandibulbosus. 
umbelled : - 5 : ¢ . 78. C. blysmoides. 
Inflorescence of 2-4 subumbelled spikes, or of one 
head. 
Head 1, dusky brown-red, of many spikelets . 79. C. Stuhlmanni. 
Spikes 2—4, laxly spicate, imperfectly umbelled. 
Bulbs 1 in. in diam., coat tough, striated  . 75. C.\bulbosus. 
Bulbs + in. in diam., coat scarious shining 
brown . : : : : : . 76. C. usitatus. 
Bulbs 51, in. in diam. ; plant very slender . 80. C. microbolbos. 
Inflorescence a fully developped umbel, usually 
compound. 
Stem much swollen at the base ; leaves with whip- 
like ends z a . . 81. C. callistus. 
Stem scarcely swollen at the base. 
Leaves shining; spikelets very bright shining 
red, “ : 4 : . . 82. C. fulgens. 
Spikelets not shining ; bulbs zonate . . 83. C. esculentus. 
§xiv. BREVIFOLIATH.— Leaves very short or 0. 
Leaves and bracts hardly any; stem (when dry) 
pseudo-septate : : s : ; - 
Leaves and bracts short; stem not (or obscurely) 
septate . . 85. C. corymbosus. 
§xv. REMOTIGLUME.—Leafy. Glumes rather farther apart (remote) on ~ 
rhachilla, by which alone this section differs from the Rotund@. Stolons hardening 
into woody rhizomes, sometimes very short, and not seen on many examples. Large oF 
medium-sized plants. In several species, the wings of the rhachilla are very narrow- 
Spikelets chestnut or bright brown. 
Leaves short ; stem at the top acutely triquetrous . 86. C. schimperianus. 
Leaves long. 
84. C. articulatus. 
Umbel compound, open; stem 2-3 ft. long . 87. C. aterrimus. 
Umbel contracted almost to a head; stem 6-9 
in. long . . a - : : . 88. C. atroviridis. 
Spikelets a black lur'd-green  . 5 c . . 89. C. maranguensis- 
Spikelets a bright ferruginous-red_ . : . . 90. C. nubicus. 
Spikelets straw-coloured, or (in C. schweinfurthianus, 
var.) yellow. 
Stem very scabrous at the top. F ° . 92. C. schwein- 
Surthianus- 
Stem smooth at the top. ; 
Stem rather slender ; spikelets spreading . . 91. C. Zollinger. 
Stem rather stout; spikelets suberect : . 98. C. elatior. 
