CLAKKE — THE CYPEBACEAE OF COSTA BICA. 469 



2 to 1 iniii. wide, L6 to 20-etriate, glabrous to the margin, this minutel) 



Bcabrous; inflorescence appearing as if simpl) ?pi > cm. l"ii'_ r . of 6 to 9 pale 



brownish spikes; lowesl bracl Betaceous, sometim< i to 5 cm. long 



Bpikee approximate, or a trifle distant, the very Lowesl one rarely 3 cm. distant from 

 the others, mosl of them 6 to L2 mm. long, ellipsoid the upper pistillate 



Btaminate at base, the terminal one rarely altogether staminate, uever pistilla 



ind staminate at apex; glume of the pistillate shorter than ili<- utricle, 

 scarcely acute, L-nerved, brownish; style bifid, shorter than the utricle; utrich 

 ."..") nun. Long, including the beak, plano-convex, elli] beak oblong-conical, 



compressed, Bhorter than the body; utricle herba* e< us, smooth, subsessile, glabrous, 

 9-nerved on the convex face, 3 to 5-nerved on the plane; margins smooth, al length 

 incurved; beak on the plane face hardly bidentate, on the other clefl to the 

 and n- margins when young almost winged, when mature minutely and rigidly 

 rous; Tim ovoid-ellipsoid, compressed, uearly filling the utricle. 



Distribution: Tampico Berlandier, 529 ; in New Granada and Venezuela, al 

 2,500 meters, frequent ; Costa Rica. 



Costa Rican collections: Poas, altitude 2,500 meters, Pit 

 Tondui L0759; Cerro de las Vueltas, altitude 3,0( 0510 i erro de 



Buena Vista, near the summit, altitude 3,300 m< (76. 



2. Carex pichinchensis II. B. K . Nov. Gen. & Sp. 1: 233. 

 Carex dura Boott, Trans. Linn. Soc. 20: 122. L846. 

 Carex sachapata Lechler, Berber. Am. Austr. 



Carex fuscoatra Boeckl. Linnaea 40: 378. L876. 



Of medium .-i/<- or stoutish; leaves 5 to 1<> mm. wide, beneath densely glandular' 

 puberulent; spikes 5 to 30, cylindrical, 2 to 5 cm. l< ug, dark chestnut-colored, al 

 the very summit staminate; pistillate glume lanceolate, obtuse, much exceeding the 

 utricle; style bifid; utricle 2.5 to 3 nun. long, i Uips< id, compressed, smooth, glab- 

 rous, rather obscurely or obsoletely nerved; beak b to one-third the length 

 of the body of the utricle, short-cylindric, the margin either sparingly or hispidly 

 scabrous, on the plane face scarcely divided at ap< x i - -ciliate, on the other 

 deeply cleft. 



Distribution: Western tropical America, very common. 



3ta Kuan collections: Poas. altitude 2,500 meters, Pittier 331, 2981, 

 Cerro de las Vueltas, altitude 3.000 meters, I 2 Cerro de la Muerte, alti- 



tude 3,100 meters, Pittier L0454; Cerro de Buena Vista, altitu le 3,300 met< rs, Pittier 

 3381. 



Nut occasionally deformed. See C. B. Clarke ' - as perhaps recently 



derived from ( '. jmnesonii, Bootl . 



3. Carex jamesoni Boott, Trans. Linn. Soc. 20: 124. L846. 



Rather robust, leaves 5 to 10 mm. broad, beneatl - - with minute glands; 



spikes 5 to 8 cm. long, linear, chestnut-brown, pistills I - cninate 



at ajx-x: pistillate glume lanceolate, equaling the utricle; style 3-fid; utricle 3 mm. 

 long, including the beak, narrowly ellipsoid, ti - smooth, glabrous, striate; 



beak half as long as the body bidentate, hardly scabn us: du1 triqu* ; i 

 deformed. 



Distribution: Mexico Galeotti5\ R ery common in western tropi- 



cal South America. 



Costa Ri< \\ collections: El Copey, altitude 1,800 met i 11921; I' - 



altitude 2,650 meters, Tonduz 10757; Barba, altitude 2,750 meters, Pittu 



4. Carex pittieri Boeckl. Allgem. Bot. Zeitschr. 2: 



A meter high, leaves 5 to lo mm. wide, beneath densely glandular-puberttlent; 

 inflorescence !<> to 50 cm. long, paniculate, of about 40 tawny-brownish spikes, 



a Pr. c. Linn. Soc. 1895 96: 2 



