434 LXXXV. ASCLEPIADEE (BRowN). \. [Orthanthera. 
or herbs with leafy stems trailing on the ground. Leaves opposite. 
Flowers small or of moderate size, in pedunculate or subsessile umbels or 
clusters, lateral or sublateral at the nodes.—Barrowia, Decne. in DC. 
Prod. viii. 629. 
Species 3, one extending into South Africa and one inhabiting India. 
In Bentham and Hooker’s Genera Plantarum, Orthanthera is united with Lepta- 
denia. I cannot distinguish Barrowia from Orthanthera, and as the latter name 
claims priority it should be substituted for Barrowia. 
An erect bush, with straight glabrous branches .. . 1. O. albida. 
Stems herbaceous, trailing, pubescent or scabrous . 2. O. jasminiflora, 
1. O. albida, Schinz in Verhandl. Bot. Ver. Brandenb. xxx. 269. 
A much-branched bush; branches erect, crowded, slender, white- 
glaucous. Leaves distant, erect or ascending, 3-1} in. long, 3-1 
lin. broad, linear, pungent-acute, channelled down the face. subsessile, 
glabrous. Umbels lateral at the nodes, 4—6-flowered ; peduncles 3-1 
lin. long, white-tomentose, as well as the bracts and calyx ; bracts about 
1 lin. long, linear-subulate; pedicels } lin. long or less. Sepals 
1 lin. long, lanceolate, acute. Corolla-tube 24-24 lin. long, narrow, 
slightly inflated below; lobes 14 lin. long, erect, linear, subacute, 
whitish-pubescent outside, glabrous within ; sinuses between the lobes 
with minute fleshy obtuse thickenings. Corona arising about $ lin. 
above the base of the 1 lin. long staminal-column; lobes ovate-deltoid, 
adnate, with free margins, erect between the anther-wings and scarcely 
reaching to their tips. Anthers linear, with short acute appendages, 
erect around the slender terete apex of the style, which does not exceed 
them.—Engl. in Engl. Jahrb. xix. 148; K. Schum. in Engl. & Prantl, 
Pflanzenfam. iv. ii. 266. 0. stricta, Hiern in Cat. Afr. Pl. Welw. 1. 
694. 
Lower Guinea. Angola: Loanda, Monteiro! in rocky maritime situations 
to the south of the town of Mossamedes, Welwitsch, 4259! German South-west 
Africa: Hereroland; Modderfontein, north of Salem, Giirich, 11 (ex Engler ): 
Zwartbunk Mountain, Stapff (ex Schinz). 
Also in Great Namaqualand, south of the Tropic. 
2. O. jasminiflora. V. HL. Br. ex Schinz in Verhandl. Bot. Ver. 
Brandenb. xxx. 265. Rootstock stout, woody. Stems 1$-15 ft. long, 
procumbent, branching, more or less scabrous or pubescent. Leaves 
petiolate, scabrous-pubescent ; petiole 1-5 lin. long; blade 3-22 
in. long, }-1 in. broad, linear, linear-oblong, ovate-oblong, ovate OF 
elliptic, acute at the apex, rounded truncate or cordate at the base, 
rather thick and rigid, often wavy or crisped on the margins. 
Umbels lateral at the nodes, pedunculate, 2—13-flowered ; peduncle 
3-1} in. long, scabrous; bracts 1-2} lin. long, }-3 lin. broad, subulate 
or ovate-lanceolate, acute ; pedicels 2-7 lin. long, scabrous or pubes- 
cent. Sepals 1}~3 lin. long, 3-1 lin. broad, lanceolate, acute OF 
acuminate, rather roughly pubescent on the back. Corolla cream 
coloured, strongly scented, pubescent all over the outside, and within 
the tube; tube 34-9 lin. long, globose-pentagonal (i.e. with 9 inflations 
é 
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