220 
TRIANDRIA MONOGYNIA. 
Tiales, sessiles, ovales, lineam fere longae, et terliam lineae 
pariem latae, distichae, dense imbricatae, S- 10 florae, fustes- 
centes, ad lentem snbpubesoentes. Valvae ovatae, obtusae, 
tenuissime striatae, carinatae, infra medium flavescentes, supra 
• medium purpurascentes, margine tenui perangiisto albo mem- 
branaceo subrevoltUo cinctae. Stigmata 2. Involucrum di- 
pliyllum; phyllo altero spiculis triplo vel rfuadruplo lon- 
giore, crassitie et figura foliis simili, at evidentius pubes- 
cente, revoluto, basi dilatato, submembranaceoj altero longi- 
tudine spiculae adjacentis illique adpresso, e basi membrana- 
cea dilatata purpurascente in mucronem foliaceum, vix semi- 
lineam longum, strictum attenuato. (Rotli.) 
38. CyPERUS margaritaceus, 
C. foliis convoluto -subulatis culmoque rigidis, spiculis 
aggregatis oblongo -laiiceolatis involucrum letrapljyl- 
^ um sobaequantibus. 
C. margaritaceus. Valil Enum. 2. p. 307. Roem. et Sch. 
syst. veg. 2. p. 169. Spreng. syst. veg. 1. p. 217. 
Habitat in Guinea. 
Culmi' caespitosi, pedales ct ultra, tenues, obtuse angu- 
lati, basi e congerie vaginarum ferruginearum subbiilbosi. 
Folia spithamaea, convoluta, canaliculata, subglaucescentia. In- 
volucri phylla patentissima, rigida, acuta, duo spiculis pa- 
rum longiora, duo breviora. Spiculae 4-5, subpollicares, 
ungue dimidio latiores, circiter vigintiflorae, niveae. Valvae 
ovatae, obtusae, striatae, apice fuscesceutes. (Vubl.) 
39. Cyperus mucronatus. 
C. culmo triquetro basi monophyllo , folio setaceo brevi, 
spiculis 2-4 sublateralibiis sessilibus lanceolatis, in- 
volucro diphyllo, pliyllo altero spiculis longiore, val- 
vis ovatis breviter acutatis, nuce trigona laevi. 
C. mucronatus Rottb. gram. 19. t. 8. f. 4. Valil symb. 1. 
p. 7- Enum. 2- p. 306. Willd. sp. pl. 1. p. 273. Sibtli. 
graec. 1. p. 34. i- 49. Roem. et ScIj. syst. veg. 2. p. 
167. mant. 2. p. 96. Spreng. syst. veg. 1. p. 217. Link 
Hort. ber. 1. p. 302. 
C. distachyos WilM. sp. pl. 1. p, 272. Allion. auct. 48. 
t. 2. f. 5. Per*, syn. 1. p. 61. 
C. iunciformis Cav. 1. p. 2. t. 204. f. 1. Desf. atl. 1. p. 
42. t. 7. f. 1. 
Habitat in Eurojm australi, Africa borcali. O 
Radix fibrosa. Culmi pliires, pod. alti, exacte tri- 
quetri, striati, apice acuto supra spicas magis minusve exce- 
dentes, inlei'dum sub spicis evanescentes, basi vagoris sub- 
tribus inclusi. Vaginae fuscae aut rufescentes, varius vi- 
rides, extima brevissima apliylla aut nulla, intermedia lon- 
gior, in mucronem non foliaceum desinens, intima longissima, 
circiter sesqui-aut bipollicaris foliifera. Folium culmo bre- 
