Asclepias. | LXXXV. ASCLEPIADEH (BROWN). 337 
tion, but sometimes without. Coronal-lobes oblique at the top with the internal 
horn adnate to the face of the lobe to nearly twice the extent it is in the type. 
Follicles and seeds as in the type.—Asclepias buchenaviana, Schinz in Verhandl. Bot. 
Ver. Brandenburg, xxx. 261 ; Engl. in Engl. Jahrb. xix. 148; K. Schum. in Engl. & 
Prantl, Pflanzenfam., iv. ii. 238. 
Lower Guinea. German South-west Africa: Hereroland; Namib, Schinz, 
18! 20! Stapff, Liideritz (ex Schinz); Wit Port, between Garieb and Ussab 
Ausspann, Giirich, 14 (ex Engler). 
Of the typical A. filiformis I have seen no tropical specimens, but it is mentioned 
by Schinz as occurring in Hereroland. It would seem likely to be useful as a 
fibre-plant, as Mrs. Barber states on a note sent with some South African specimens 
“This species ought to be useful as a fibre-plant, it is exceedingly tough, grows 4-6 
ft. high, and his upwards of two hundred almost leafless slender stems on a single 
plant.” 
The variety buchenaviana seems only to differ in its stouter, branched stems, as 
I doubt if the coronal characters are constant, since there are specimens at Kew 
collected in Great Namaqualand by Schinz (19), that have the stout branched stems 
of this variety, but with coronal-lobes as in the type. 
28. A. tenuifolia, V. #. Br. in Kew Bulletin, 1895, 255. Stems 
2 ft. or more high, slender, branched, woody below, pubescent. Leaves 
1-2} in. long, erect, filiform, acute, with strongly revolute margins, 
pubescent. Umbels lateral and terminal, 3—5-flowered ; peduncles 4—6 
lin. long, pubescent ; pedicels 4—5 lin. long, slender, pubescent. Sepals 
1-1} lin. long, lanceolate, acuminate, pubescent. Corolla rotate or 
rotate-campanulate (? reflexed); lobes 2-2} lin. long, 1} lin. broad, 
elliptic, subobtuse, narrowed towards the base, pubescent on the back. 
Coronal-lobes arising 4-2 of a lin. above the base of the staminal- 
column and equalling it in length, erect, 1 lin. long, complicate, nearly 
semicircular in side view, truncate, margins at the apex produced 
over the tips of the anthers into short acute teeth, no tooth or 
horn within.  Follicles solitary, nodding or horizontally spreading, 
1-1} in. long, 3-4 lin. thick at the ovoid base, tapering into a long 
slender beak, softly pubescent with fine spreading hairs. Seeds 2 lin. 
long, turgid-convex on the back, grooved down the face, scrobiculate, 
nely pulverulent pale brown. 
Mozamb. Dist. Rhodesia: Lee’s Farm, Mangwe River, Baines / 
Much like 4. filiformis, Benth, und Hook. f., in appearance, but more branched 
pubescent, and with a different corona. The flowers appear to be pale yellowish or 
Whitish with a yellow corona. 
29. A. leucocarpa, Schlechter in Journ. Bot. 1895, 335. Stems 
4-5 ft. high, sparingly branched, white-tomentose in the upper part. 
Leaves opposite, ascending, subsessile, 4-6 in. long, }-1 lin. broad, 
linear, acute, revolute along the margins, glabrous or the youngest 
puberulous. Umbels lateral between the bases of the leaves, pedun- 
culate, simple or the same peduncle bearing two umbels with an interval 
of about + an in. between them, several-flowered ; peduncle }-2 in. 
ong, minutely puberulous ; pedicels #—1 in. long, minutely puberulous. 
epals 1-11 lin. long, 3 lin. broad, ovate, acute or acuminate. Corolla 
reflexed, 5-lobed nearly to the base, white or yellowish ; lobes 3 lin. long, 
VOL. ry, Z 
