(^^ P A N ic E A E. Ccnchrus. 



Cenchrus iribuloidcs. Fi. cl S. II. p. 253. — C. carolinianus fJall. — C. spiniJexCav. 

 V. spp. Canad. Bia5. 

 SimiHs pracceJcnll. CapUuIa plerumquc majora magisque globosa; laciniae 

 iwolucelli laliora. Flosc. masc. vel ncut. bivalvis. 

 Cenchrus agrimonioicles. Capitulis (conoideis) reflexis; Involucelli l-Jlori laciniis in- 

 fcrne lurbinato connatis, exterioribus setaceis, brevissimis, squarrosis. in- 

 lcrioribus suljuliformibus, conniventibus, villosulis. 

 Cenchrus a^rimonioiJcs Trin. Diss. II. p. "72. 

 V. spp. ex 0-Waahu. 

 Culmus 2-pedalis et ullra, satis validus, striclus, dtcuml>ens. ranjosus. faginae 

 cum foliis glabrac. Folia slricta, supra s<:abriuscula, marginibus liispida, lincas 

 5 __ "7 lata, dodrantalia — pcdalia. Thyrsus laxus, 5 — 5-polIicaris. Axis 

 elabcr, Capilula acuto-conoidea, brevi-pedicellata: pedicello basiquc lurbi- 

 nala nubescentibus. Gluma jnferior parva, 1-, supcrior flosculis terliam par- 

 tem brcvior, 5-nervis. Flosc, masc, 2-valiis; valvula infcrior 7-nervis. Ilei- 

 maphrodilum acquans, 



b) Imolucelli laciniis simplicibus , margine sursum hispidulis: Gluma infcriorc 

 nulla; Ligula mcmbranacea (Akthepiiora). 



Ccnchrus ladigalus, Capllulis ereclis; Involucelli 1 — 5-llon laciiiiis (4 — 5) 

 aequalibus, lingulatis, basl in discum claviformem cnnnali»-. 

 \ Ccnchrus laciigafus Trin. Diss. II. p. "74. 

 Tripsacum hcrmaphrodilum L, sp. pl. ed. 2. 

 Colladoa monoslachya Pers. 



jinlhcphora clegans Schreb. Gram. tab. 44. R. ct S. 11. p, 497. 

 * Vaginis foliisque pL min. villosis, involucdlis pubesccntibus: 

 Cenchrus villosus Sprgl. S. V. 

 Anlhephora nllosa Sprgl. N. Entd. 

 V. sj)[). Ind. occ. 



