Ipomoea .] 
C0NV0LVULA.CEJ3. 
209 
8. I. obscura, Ker , Bot. Beg. t. 239. An annual climber, with 
very slender stems, clothed with minute hairs or glabrescent. Leaves 
entire, cordate-ovate, acute, membranous, 1-3 in. loug and broad ; 
petiole 2-3 in. long. Flowers 1-3 on a short common peduncle ; 
pedicels thickened, with a pair of small lanceolate persistent bracts 
at the base. Flower-sepals -§—£• in. long, ovate, subacute, glabrous. 
Corolla under an inch long, cream-coloured, with yellow longitudinal 
bands and a purple throat. Capsule glabrous, i in. thick. Seeds 4, 
pilose. Choisy in DC. Prod. ix. 370. Convolvulus obscurus, Linn. C. 
gemellus, Vahl. C. gonatodes, Steud. 
Mauritius, round Port Louis and by waysides at Plaines Wilhelms, Dr. Ayres. 
Not native, according to Bojer. Rodriguez, common, Dr. Balfour ! Seychelles ; 
common in all the islands, Horne , 278 ! 529 ! Through the tropics of the Old World. 
9. I. Turpethum, B. Br . ; Choisy in DC. Prod. ix. 360. A woody 
twiner, with finely pilose angular stems, often furnished with four 
narrow membranous wings (J. anceps, R and S.). Leaves cordate- 
deltoid, rarely crenate, acute or obtuse, with a minute cusp, 2-6 in. 
long and broad. Flowers 2-6, on a short peduncle, corymbose, with 
large membranous subpersistent bracts. Flower-sepals pilose, J— f- in. 
long, obtuse, with a minute cusp, much imbricated. Corolla white, 
more than twice as long as the calyx. Capsule globose, an inch thick. 
Seeds 4, glabrous, the size of a pea. Convolvulus Turpethum, Linn . ; 
Bot. Mag. tab. 2093. Spiranthera Turpethum, Bojer , Sort. Maur. 
226. 
Seychelles, common in damp shady places in the island of Mahe, Horne , 279 ! 
Rodriguez, not common, Dr. Balfour ! Subspontaneous in Mauritius at the battery 
of the Grande Riviere. Through the tropics of the Old World. Turbith. 
Of the subgenus Pharbitis , marked by its trimerous ovary, the two 
following common garden species are casually subspontaneous. 
* 1. purpurea , Lam. (Convolvulus, Linn.; Bot. Mag. t. 113, 1105, 1682 ; 
Pharbitis hispida, Choisy in DC. Prod. ix. 341), a slender twining 
perennial, with minutely downy stems, entire round-cordate leaves 
pilose on both sides, peduncles 3-5-flowered, sepals ovate-acuminate \ 
inch long, corolla middle-sized purple red or white. — Rodriguez. 
Dr. Balfour. A native of America. 
* I. Nil , Roth. (Convolvulus, Linn.; Bot. Beg. t. 276), an annual, 
with longer deflexed hairs, leaves membranous as broad as long deeply 
three-lobed, peduncles 2-3-flowered, sepals an inch long lanceolate 
densely bristly near the base, corolla middle-sized blue. — Round the 
world in the tropics. Found by Dr. Balfour in Rodriguez, and a densely 
pilose form in the island of G-ombrian. 
10. I. fragrans, Bojer, MSS. A shrubby climber, with stems 
densely clothed with persistent spreading soft grey hairs. Leaves 
distinctly petioled, cordate-ovate, acute, entire, 2-3 in. long, moderately 
firm in texture, shortly pubescent above, densely clothed beneath with 
p 
