Trichocaulon. | ASCLEPIADE (Brown). 893 
tube campanulate or cup-shaped, about 14 lin. long and as much in 
diam. at the mouth, which is distinctly pentagonal and has a 
slight inwardly projecting rim; lobes spreading, with recurved 
tips, 24-3 lin. long, 24 lin. broad, very broadly ovate, shortly and 
somewhat abruptly acuminate ; outer corona shortly cupular at the 
base, divided into 10 narrowly deltoid-subulate acute teeth 3 lin. long, 
which are straight, subequidistant, ascending-spreading and rising 
to the mouth of the corolla-tube, yellow ; inner corona-lobes about 
3 lin. long, subulate, incumbent upon the backs of the anthers at 
the base, produced beyond them for half their length in a connivent- 
erect column rising to the mouth of the corolla-tube. 
CENTRAL Reaton : Laingsburg Div. ; along the main road to Ladismith, about 
12 miles south of Laingsburg, Pillans, 668 ! 
Partly described from fresh flowers preserved in fluid. This is the tallest 
species of the genus at present known. 
7. T. flavum (N. E. Br. in Journ. Linn. Soc. xvii. 165, t. 11, 
fig. 2-4); plant about 6 in. high, with stems just like those of 
S. piliferum in size and other characters, but the slender spines 
terminating the tubercles are of a darker brown; pedicels }—} lin. 
long, glabrous ; sepals 1-1} lin. long, tapering from the } lin.-broad 
base to the very acute apex, glabrous; corolla about } in. in diam., 
lobed to half-way down, glabrous on both sides and not ciliate, 
smooth outside, minutely papillate or smooth on the inner face, dull 
yellow ; tube none, the united part flat; lobes ascending-spreading, 
with recurved tips, about 2 lin. long and 2} lin. broad at the base, 
broadly deltoid-ovate, rather abruptly or shortly subcuspidate- 
acuminate ; outer corona-lobes | lin. long, very spreading or slightly 
recurving, shortly connate at the base, deeply divided into 2 linear 
diverging segments, which approach those of the adjacent lobes, 
forming pairs of teeth somewhat resembling the mandibles of a 
beetle, yellow, glabrous; inner corona-lobes scarcely } lin. long, 
linear, obtuse, closely incumbent upon the backs of the anthers and 
not exceeding them, dorsally adnate at the base to the outer corona, 
yellow, glabrous. NV. EH. Br. in Hook. Ic. Pl. under t. 1905; K. 
Schum. in Engl. und Prantl, Pflanzenfam. iv. ii. 275 ; Schlechter in 
Journ. Bot. 1898, 475. 
CentRaL Recion: Beaufort West Div. ; Rhenoster Kop, Foster in Herb. 
Pillans, 171! Prince Albert Div. ; near Prince Albert, Marloth, 4385! Div. ¢ 
Karoo, Bain ! 
Partly described from fresh flowers preserved in fluid; those of the type are 
very minutely papillate on the inner surface, whilst in Mr. Pillans’s specimens 
they are smooth. 
8. T. officinale (N. E. Br. in Kew Bulletin, 1895, 264) ; stems 
about 5 in. high, like those of T. piliferum, but apparently with 
fewer vertical series of spine-tippped tubercles; flowers 1-2 or 
perhaps more together between the tubercles on the sides of the 
_ stems ; pedicels }—1 lin. long, glabrous ; sepals 1-13 lin. long, ovate — 
