FLORA OF ADEN. 
257 
Flowers sessile, distant, 1 — 2 -ranked, in simple geminate or ternate 
densely hairy spikes 2 — 6 inches long:. Calyx divided almost to the base, 
hairy ; segments 5, linear, acute, ciliate. Corolla slightly exserted beyond 
the calyx ; tube cylindric, slightly pubescent outside, the throat plicate ; 
lobes 5, broadly ovate or suborbicular, obtuse or subacute, undulate, 
veined, usually with small teeth between the lobes. Stamens inserted 
below the middle of the corolla-tube ; anthers linear-oblong, rounded at 
the tip. Style short ; stigma shortly conical at the base, prolonged above 
into a long subulate appendage about inch long, divided at the apex 
into 2 filiform, recurved, acute arms. 
Fruit jg- inch long, glabrous, black ; nutlets 4, rounded on the back 
and at their apex, .1 -seeded. 
Mowers: — March 1888 (Schweinf.), March 1878 (Perry). 
locality : — Above the coal-depot of the Messag. Marit. (Schweinf.); 
without locality (Birdw., Lunt, Perry, Beevor) . 
Distribution : — Sind, Baluchistan, S. Arabia, S. Persia, Somaliland. 
5. Heliotropium lignosum Vatke in Oester. Bot. Zeitschr. (1874) 
p. 167 ; Boiss. FI. Or. IY, 143 ; This.-Dyer FI. trop. Afr. IV, sect. 
2, p. 40. 
Lithospermum lignosum Schweinf. ex Vatke 1. c. 
Description : — -Fruticose. Stems short, woody, ascending, densely 
clothed with short adpressed whitish bristly hairs. Leaves small, 
sessile, lanceolate, with revolute crisped edges, densely and shortly 
bristly on both sides. 
Spikes short, dense, 3 — 6-flowered. Calyx 1J inches long, very 
hispid ; tube short ; segments oblong. Corolla-tube slightly longer 
than the calyx, subcylindric ; segments small, obtuse. Stamens inserted 
just below the middle of the corolla-tube. Style short ; stigma conical ; 
apex bilobed. 
Nuts 4, hispid. 
Flowers: — Dec. 1888 (Schweinf.). 
Locality : — Near the mosque Shaikh Aidrus in the crater of the 
Shum Shum Range (Schweinf.) . 
Distribution: — S. Arabia, S. Persia, Nubia. 
6. Heliotropium adeiiense Gurke Herb. Berol. ex Krause Engl. 
Bot. Jahrb. XXXV, Heft 5, p. 51. 
Description .-—Perennial, much-branched from the base, densely 
clothed with pilose hairs ; lower branches woody. Leaves £ — ^ inch 
lo ng, inch broad, sessile, pilose, re volute on the margin. 
N 2 
