r 



48 



MISSOURI BOTANICAL GARDEN. 



is probably the 

 character enouc 



Walt 



but it has scarcely 



[P. 79] 41. Cenchrus. Involucrum echinatum bifloruin. 



carolinianus spica glomerata, gluinis globosis muricato- 



1. 



spiuosis laevibus. 



There is no 



hei 



there is no reason to suppose that it is not C. tribuloidet 

 L. except that the latter is described as having hirsute 

 glumes. 







42. Uniola. Cal. inultivalvis, valvis ventricoso-subulatis, 



spicula ovata, compressa, carinata. 

 paniculata 1. paniculata, spiculis ovatis. 



The specimen in the h< 

 and two leaves. It is U. 

 of which Walter copies. 



consists of a panicle 



spicata 2. panicula coarctata spiculis 3 ad 5-floris, fol. 



involutis rigidis. 



h 



D 



There seems to be no 

 ata Greene. Linnaeus' 



U. spicata has been altered bv "W 



43. Briza. 



Cal. 2-valvis, multiflorus. Spicula disticha. 

 Valvulis cordatis obtusis : interiore niinuta. 



No specimen in herbarium 



caroliniana 



i. 



panicula decomposita, paniculis partialibus 

 ramosis, spiculis cordato-lanceolatis, flos- 

 culis quindecim. Rami breves. Spiculae 

 vix tremidae. 





