629 

 Sffn. Eotfcboellia perforata, £oxb. — Thyridostaohyum perforatum, 



Engrm. Eoxb. Cor. II. t. 182. 



Spec. Chau. Culms simple, 3 — 5-feet: sheaths -wooUy at the 

 mouth and above the base : leaves glabrous, hispid at the margin : 

 spikes axillary, solitary: joints flower-bearing at both sides, dis- 

 sepiment perforated : outer glume entire, smooth. 



•Bengal. Peninsula. 



GENUS XLVIII. EOTTBOELLIA. 

 Vriandria Digrynia. Sex: Sysu 



Deriv. In honour of C. P. Rottboel, a Danish Botanist. 



Gen. Chae. Spike terete, jointed : spikelets 2 in each joint, 

 one sessile 2-flowered, immersed in the rhachis, the other pedicelled 

 withering, pedicel sometimes closely adnate to the rhachis : flowers 

 enclosed, lower 1 — 2 -paleaceous male or neuter, membranaceous or 

 hyaline, upper one membranaceous hermaphrodite : glumes 2, 

 nearly equal in length, outer concave, coriaceous, inner keeled and 

 boat-shaped, seldom wanting : scales 2, fleshy, obliquely truncated : 

 stigmas plumose. 



(1) R. EX4XTATA. f Linn. J 



Bent. Eoxb. 1. c. p. 354.— E. Br. prod. 206. 

 Syn. Stegosia Coohinchinensis, Lovr. 

 Migrcm. Eoxb. Cor. II. t. 157. 



Spec. Chae. Leaves and sheaths strigosely hairy : spikes full of 

 florets, beardless : glumes obtuse, dtiter hermaphrodite nerveless, 

 and with the rhachis very scabrous, male nerved, slightly scabrous. 



Peninsula. 



(2) E. OLABEA. fRoxb.J 

 Ident. Eoxb. 1. c. p. 353. 



Spec. Chae. Culm creeping at the base, ascending, 1 — 3-feet, 

 glabrous : leaves alternate, approximated, short, bifariously spread- 

 ing, ensiform : spikes axillary, solitary or twin, subulate, trigonal, 

 shortly pedicelled : flowers opposite, the length of the joints (nearly 

 all) hermaphrodite : glumes cartilaginous, outer obliquely emar- 

 ginate, inner acute : corolla 3-valved. 



Bengal. 



