m 
FLORA OF ADEN. 
“ Glabrata, pallida ; aculeis ternis rectis vel curvulis, foliis parvis, 
pinnis 2 — 3-jugis ; foliolis latiuscule oblongis obtusis vel interdum 
obscure mucronulatis basi oblique subcordatis glabris, rhachide puberula, 
floribus spicatis sessilibus, spicis breviter pedunculatis, calyce campanu- 
lato puberulo, petalis oblanceolatis mucronulatis, legumine oblongo stipi- 
tato, valvis obtusis mucronatis transverse venulosis puberulis. 
“ Folia J — l poll, longa, rhachide puberula ; foliola ad 1 lin. longa. 
Inflorescentia cum pedunculo f poll, longa. Legumen f — 1 \ poll, 
long., J poll, lat., 1 — 3-sperm/’ 
A. Acacia spirocarpa (Forsk.) Hochst. in Sr,himp. PI. Abyss, 
n. 658 et in A. Rich. Tent. FI. Abyss. I, 239 ; Schweinf. Linnsea 
XXXV, 332, tab. IV— VI; Oliv. Fl.trop. Afr. II, 352; Benth. Trans. 
Linn. Soc. XXX, 505. 
Mimosa tortilis Forsk. FI. Aeg.-Arab. p. 176? 
Acacia nubica ft pubescens A. Terrac. FI. d’Anfilha, p. 24*. 
Arabic name : — Ssammor or Ssamr (Schweinf.) . 
Description : — A low tree ; extremities red-brown, pubescent. Stipular 
spines patent, straight, slender, varying in length to 2J inches some- 
times on the same branch, hooked or obsolete. Leaves short, J — 2 inches 
long, petioles pubescent; pinnae in 4 — 10 pairs; leaflets very small, 
oblong, in 7 — 15 pairs. 
Peduncles 1 or few, axillary, bearing the minute involucel below or 
near the middle. Flowers capitate. 
Pod spirally twisted or contorted, linear, compressed, slightly con- 
stricted between the seeds, valves coriaceous, longitudinally nerved, 
pubescent or puberulous, 3 — 6 inches long, J — J inch broad. 
Fruits in March (Schweinf.). 
Locality : — Above the coal depot of the Messag. Marit., Goldmore 
Valley, plain of Maala (Schweinf.) ; without locality (Birdw.). 
Near Shaikh CPthman (Busse) . 
Distribution : — S. Arabia, Eritrea, Abyssinia, Nubia. 
5. Acacia nubica Benth. in Lond. Journ. Bot. (1842), p. 498. 
Acacia aucheri Benth. in Lond. Journ Bot. (1842), p. 498. 
Acacia pterygocarpa Hochst., Benth. in Journ. Bot. (1846), p. 96. 
Description : — Shrubs ; branches glabrescent ; young shoots at first 
pubescent. Stipular spines straight or slightly curved. Pinnse in 3 — 12 
pairs ; rhachis with 2 or 3 minute sessile glands, or without glands ; 
leaflets in 6 — -15 pairs, oblong, obtuse, or broadly pointed, glaucous, 2 — 3 
Pneslong. 
