SPICILEGIA GORGONEA. 181 
Ad apices monticulorum circa Porto Praya et montis 
abrupti in valle S. Dominici, ins. S. Jacobi : cortex argen- 
teus, (J. Dalton Hooker, n. 10. 2 Nov. 1839, spec. sine 
flore et fructu, pedicellis solis superstitibus.) 
This species is common in Teneriffe, on dry rocks, in the 
lower, or African region, where it acquires the height of 
8 feet, or more. It differs from A. officinalis in having very 
numerous fasciculated flowers, 
Asparagus. .... ? , 
A parte media usque ad apicem montis Verede, ins. S. Vin- 
centi : frutescens, ramis longis divaricatis dependentibus 
reclinatis, (Th. Vogel, n. 4. Junio, 1841, spec. foliis fere 
destituta sine fl. et fruct.) 
; The young branches of this plant are green and striated, 
like those of 4. amarus, but the leaves are more aciculated 
and the bracteæ subtended by a stronger and longer prickle. 
There exists in the herb. Mus. Par. a single specimen of 
a species of Smilax very nearly allied to S. Canariensis, Willd., 
but evidently differing from it. 
LVI. Juncea, Juss. 
234. Juncus acutus, Lamck. Encycl. 3. p. 268. Juncus acutus, 
a. Linn. Sp. Pl. p. 463.—Ic. Engl. Bot. 1614. 
Has. In aquosis sub apice montis Verede, ins. S. Vincentii. 
(Th. Vogel, n. 42. Junio, 1841, spec. fructifera.) 
LVII. CowwELvNrm, R. Br. 
235, Commelyna canescens, Vahl, Enum. 2. p. 73. Roem. et 
Schult. Syst, 1. p. 535. Mant. 1. p. 338. Kunth, Enum. 
4. p. 50. 
Han. In valle S. Dominici ins. S. Jacobi (J. Dalton Hooker, 
n. 101. Nov. 1839, spec. flor.) 
LVIII. Narapzz, Juss. 
236. Potamogeton pusillus, L. Sp. PI. p. 184. Smith, F7. Brit. 
P. 95.—Ic. Engl. Bot. t. 215. El. Dan. t. 1451. Nees ab 
Esenb. fluvial. t. 4. f. 9. et seq. à 
Has. In ins. S. Jacobi (Darwin, spec. flor. et fructifera.) 
