CLABKE 111 I. < IYPERACE \l. 01 COSTA RIC \. 47 1 



Stem a meter high, stout; Leaves 3 cm. long; panicle amplo, broadly pyramidal 

 dense, often L2 cm. wide; nut, with its long-conic beak far surpassing the glume. 



Distribi noN: \ icaragua, Brazil i Rica 



t osta Ki< \\ collei noN Cocos Island, Pittier L2380 



rcely differs from //. amplum Kunth," a species dispersed through Guiana, 

 Surinam, and along the Amazon in Brazil. 



18. MAPANIA Aubl. 



Spikes densely capitate; proper spikelets appearing like bisexual flowers, 6-squamel- 

 late; two lower squamellae opposite, boat-shaped, each with tamen, the third 



one lateral, plane, sterile or with a Btamen, this succeeded by three thai are sterile, 

 often delicate; uppermost flower a single naked pistil; style trifid or bifid. Plants 

 glabrous, excepl as to the Bquamellae. 



m:n TO l ll l 8P1 I l ES 



Lea"\ es represented only by the broad leaf-like bracts I . M. sil 



Basal leaves present, elongated, cauline except the bracts none... 2. M pycnocephala. 



1. Mapania sylvatica Aublet, PI. Guian. 1: 47. pi. 17. 177") 



Stem 30 to 60 cm. long, leafless; bracts 3, as much as I l cm. long, 6 cm. wide; head 

 ovoid, 1 i" 2 cm. long, ferruginous; style trifid. 



Distribution: Venezuela, Guiana, Panama Barclay 944 i Rica. 



Costa Rjcan collection: Carrillo, Pittier L187. 



2. Mapania pycnocephala Benth. Journ. Linn. Soc. 15: 512. pi. 5, 6. L887, by 



pycnostachya. 

 Hypolytrum pycnocephalum Benth. Bot. Voy. Sulph. 177. L844. 

 Stem 30 to 60 cm. long; basal leaves 30 to 40 cm. long, 2 to 3 cm. broad, narrowed at 

 each end; bracts 3, resembling the leave-: head 1 to 2 cm. long, ovoid, ferruginous; 

 style bifid. 



Distribution: Panama Island of Gorgona, Choco Bay , Costa Rica. 

 \ Kuan colle< noN: Carrillo, Pittit 1188. 



« Enum. 2: 272. 18 



o 



