CLIV. GRAMINEiE. 



609 



587. Panicum rarum, R Br. 



(A) Base of leaf and portion of leaf-sheath, (ai) base of leaf, (a2> ligula, (a3) top 

 portion of leaf-sheath, (B) spikelet, (C) fruiting glume. (A), (B), and (C) enl. 



588. P. ARGENTEUM, R. Br. 

 (A) Base of leaf and portion of leaf-sheath, (B) ligula, (C) spikelet. (A), (B), and 



(C) enl. 

 2 P 



