FLORA OF ADEN . 
265 
Cressa latifolia Anders. Journ. Linn. Soc. V, Suppl. p. 25. 
Seddera latifolia Hochst. et Steud. exsicc un. itin. n. 884 et Flora 
1844, I. Beil. p. 8, tab. 5 ; Chois, in DC. Prodr. IX, 440 ; Boiss. FI. Or. 
IV, 114. 
Breweria evolvuloides Yatkein Linnsea (1S43) p. 523 ( non Choisy). 
Breweria argentea Terrac. in Ann. Istit. Bot. Roma V, 104. 
Description : — A much-branched, low undershrub with slender, woody 
branchlets, clothed with dense, short, velvety-white pubescence. Leaves 
broadly elliptic, rigidulous, shortly stalked, 2 — 4 lines long, clothed with 
short adpressed white hairs above and beneath, apex and base generally 
rounded, the former sometimes inconspicuously mucronate. 
Flowers subsessile, solitary in the axils of the leaves or aggregated 
into short bracteated terminal spikes. Sepals subequal, obovate, coriace- 
ous and rigid with acute herbaceous apex, 2 lines long, back pubescent 
like the leaves. Corolla not exceeding the calyx , limb two lines in diame- 
tei when expanded , tips of midpetaline areas densely hairy. Stamens equal, 
glabrous ; filaments dilated at the base, with short rounded appendages. 
Ovary obovoid, upper portion hirsute ; style divided to the base ; stigmas 
orbicular. 
Capsule 1J lines in diameter, splitting into 4 rigid valves. Seeds 
narrowly ovoid, blackish, glabrous, 1 line long. 
Locality : — Shum Shum Eange at a height of 800 feet (Hook.) ; 
Wadi Maala (Schweinf.) ; without locality (Birdw., Hildebrandt) . 
Distribution : — Nubia, Abyssinia, Eritrea, Socotra, S. Arabia, Sind, 
Baluchistan, Punjab. 
Note: — Anderson says that Wight's figure of Seddera evolvuloides 
(leones t. 1369) is merely a glabrous state of our species, w r hieh Choisy 
referred to Breweria. Breweria evolvuloides Choisy ( Seddera evolvu- 
loides Wight), occurring at Tuticorin, resembles B. latifolia very much, 
but the leaves are nearly glabrous, the flowers often in twos or threes, 
on slender bracteolate pedicels J J inch long. B. latifolia is a character- 
istic desert plant. 
3. Ipomoea L, 
Herbs (rarely shrubs) twining or prostrate, rarely erect or suberect. 
Leaves alternate, usually entire. 
Flowers usually large, in axillary (rarely paniculate) cymes which 
•are often reduced to a single flower. Sepals 5, equal or unequal, imbri- 
cate, often enlarged in fruit. Corolla campanulate or infundibuliform ; 
limb plicate, slightly lobed ; bands usually defined by 2 prominent lines. 
Stamens 5, usually included ; filaments filiform or dilated below, often 
unequal ; anthers straight or contorted ; pollen echinnlate. Ovary 2- 
