160 C. B. Clarke: 



Carex hystericina Schkuhr Iliedgr. II (1806) p. 69 t. Fff fig. 127 ; 

 Willd. Sp. Pl. IV (1805) p. 282; Kmith Enum. II p. 497; Boott 

 Carex I p. 62 t. 165; Boeck. in Linnaea XLI (1877) p. 323. 



Carex hystricina L. H. Bailey in Proc. Amer. Acad. XXII (1886) 

 p. 69. 



Hab. in Jamaica ad Salt Hill: Herb. Jam. Bot. Departm. n. 2081. 

 Distrib. Civitates Americae sept. unitae. 



XXV. Hypolytrum L. C. Rich. 



Flores unisexuales, 3 in unaquaque spicula, 2 inferiores masculi 

 monandri oppositi, summus foemineus (pistillum nudum) terminalis. 

 Stylus basi tumidus aut bulbosus, rami 2 lineares. Nux parva, tur- 

 gide biconvexa, stylobasis cum nucis apice fusa. Spiculae perparvae, 

 in spicas (Scirpi spiculis similes) capitatae, spicularum bracteis spiraliter 

 imbricatis. Grlumae masculae naviculares, in carina pilosulae, liberae 

 vel interdum (imo altius) connatae. Inter flores 2 masculos et pistillum 

 1 4 glumae vacuae (flores masculi steriles) spiraliter rarius interpo- 

 nuntur. Spicae (e spiculis pluribus exstructae) paniculato-corymbosae, 

 aut in caput compositum plus minus contractae. 



Species 42, tropicae raro paullo extratropicae, in utroque orbe 

 sparsae. 



241. Hypolytmm loiigifolinm Nees, praeter glumarum carinas 

 glabrum, rhizomate tenui; culmo 3 7 dm. longo, graciliore, apice tri- 

 gono parum scabro; foliis omnibus culmi basin versus sitis, culmum 

 saepe superantibus, 3 11 mm. latis; panicula 4 cm. longa 3 cm. lata, 

 5 35-spicigora, ramis divaricatis; bractea ima paniculam multo super- 

 ante, cum foliis consimili; spicis 5 mm. longis, oblongis aut proventu 

 ellipsoideis, bruneis; glumis 2 masculis elliptico-oblongis, bractea bre- 

 vioribus, glumis vacuis (inter glumas masculas et pistillnm) nullis; nuce 

 cum glumis aequilonga, obscure rugosa viridcsccnte, apice (stylobasi cum 

 nuce fusa) pallido; stylo ipso perbrevi, ramis 2 linearibus. 



Hypolytrum longifolium Nees! in Linnaea IX (1834) p. 288; 

 h ii ii lh En iDn. II p. 271; Boeck. in Linnaea XXXVIII (1871) p. 123. 



Hypolytrum fuscum Nees/ in Mart. Fl. Bras. II jjws / (1843) 

 p. 67; Boeck. in Linnaea XXXVII (1871) p. 123. 



Scirpus longifolius L. C. Rich. in Act. Soc. d'Hist. Nat. Paris I 

 (1792) p. 106. 



Hab. in Trinidad: Hart n. 3210. 



Distril. in Ghiiana frequens, usijiic ad Brasiliam australeui sparsum. 



