P 
` Roitbeliia. SRIANDRIA BIGYNIA, 357 
' 6. R. setacea. Corom. Pl. ii. N. 132. 
eiiis H E 
Erect, setaceous, smooth, from two to six inches high. Spikes 
solitary, terminal, unilateral ; rachis not joined. Calyces one-tiow- 
eed. Corols two-valved, hermaphrodite. 
bw on old walls. ex d ; 
Culms many, erect, ramous, filiform, smooth, from two to six 
inches high. — Leaves, inside a little hairy, in size proportioned to 
the plant.--Spikes terminal, solitary, awled, secund, about an inch, 
or an inch and a half long. Rachis excavated on one side, but not 
joined. — Flowers, they are all hermaphrodite, imbricated transvers- 
ly on the excavated side of the rachis —Calyr one-flowered, two- 
valved ; valvelets equal, membranaceous margined .— Corol two-valv- 
ed, membranaceous, hairy .— Stamens three.— S£yles two. 
7. R. Thomea. Linn. Sp. Pl. ed. Willd.i. 464. Corom. Pl. ii. N.138. 
Erect, compressed, about two inches high. Spikes solitary, ter- ; 
ex minal, two ranked. Rachis not € Calyces one-flowered. Corol 
: tWo-valved. 
R. Temes and pilosa. Linn. Sp. Pl. ed. Willa. i 1. 464, 5. are, I 
suspect this very species. Ed 
_ Grows, with the last species, on old walls. 
| Culms minute, erect, compressed, about an inch high, exclusive 
| f the spike, and two with it.— Leaves bifarious, numerous.— Spikes 
terminal, solitary, subulate, distichous, compressed. Rachis wav- 
. ed, excavated on the opposite side, not articulated.— Flowers all 
hermaphrodite, disposed alternately in the excavations ofthe rachis. 
—Calyx one-flowered, two-valved ; exterior valvelet rigid, linear ; 
intérior boat-shaped, and less rigid.— Corol two-valved, membrana- 
€eous, hairy, — Sfamens three.— Styles two. 
t 
8. R. biflora. R. ; ; zi 
Setaceous. Spikes simple, subulate ; rachis not articulate, but bi- 
fariously excavated for the reception of the two-flowered spikelets. 
A native of ihe peninsula of India ; and in size and appearance ve- 
* 
