Stobea. | COMPOSIT (Harv.) 499 
38, S. seminivea (DC! 1. c. 518); stem herbaceous, erect, terete, 
branching, cobwebbed above; leaves not decurrent, tapering at base 
into a winged, more or less spine-bordered petiole, oblong, pinnatifid 
or deeply incised, cobwebbed at length nude, or minutely pubescent 
(green) above, snow-white and woolly beneath, the lobes oblong or 
lanceolate, few -toothed, the teeth and lobes spinous-mucronate, margins 
minutely revolute, spinello-denticulate; heads discoid, panicled, (small) 
inv. sc, rather shorter than the disc, cobwebby, margined with 2-3 
spines; achenes thinly pilose; papp. sc. biseriate, obtuse, subdenticled. 
Has. Betw. Omtata and Omsamwubo, Drege! Natal, 7. Williamson! Gueinzius, 
604/ Sutherland! Grant/ Gerr. and M’K. 306. (Herb. D., Sd., Hk.) 
A tall plant. Cauline leaves often 6-10 in. long, including the petiole, 4~5 in. 
wide ; the lower leaves more deeply incised. Heads } in. diam. 
39. S. rigida (Th.! Cap. 521); stem herbaceous, branching, terete, 
cobwebby-canescent ; leaves rigid, sessile, half-clasping, the younger 
cobwebbed, the adult glabrate above, all white-woolly beneath, deeply 
pinnatifid or pinnutipartite, the lobes narrow, lanceolute or subulate, 
with revolute margins, spinous-tipped, the margin sometimes spinel- 
lose ; heads with few very short rays, or discoid, aggregated, subracemose, 
short stalked ; inv. se. lanceolate, pungent, concave and woolly beneath, 
with 1-2 pair of sub-basal, geminate spines; achenes (Hb. h.!) glab- 
rous or (Hb, Eckl.?) very thinly silky. 
Has. Near the sea shore, about Capetown and Simon’s bay, Thunberg! Ecklon! 
MeGillavray! Milne! Cape Flats, Wallich!) (Herb. Th., D., Hk., Sd.) 
A hoary, much-branched plant, with narrow-lobed leaves, which are at first 
white on both sides, and afterwards green above. Leaves 2-4 in. long, spreading ; 
lobes 1-2 lines wide. Heads small. I find perfectly glabrous ovaries on one of 
Thunberg’s specimens ; and on one from Mi/ne (Hb. Hk.); but in Ecklon’s, marked 
by Lessing, they are sparingly silky. In other respects the plants seem to agree. 
I have only seen rays on one sp. (Hb. Th.) ; are they generally present? They 
scarcely exceed the dise flowers in length. 
40. S. bipinnatifida (Harv.); stem erect, sufiruticose, terete, cob- 
webby-canescent, branching at the summit ; cauline leaves sub-petiolate, 
clasping and stipell-spined at base, pinnatipartite, the lobes 3-5 pair, 
narrow, decurrent, deeply incised or pinnatifid, with revolute, entire 
margins, the lobes and lobules spinous-tipped, upper surface cobwebbed, 
becoming glabrous, lower white-woolly ; heads discoid, small, subco- 
- rymbose at the ends of the branches ; inv. sc. equalling the dise, nar- 
row-lanceolote, bordered with simple spines ; achenes silky ; pappus 
short, denticled. 
Has. Howison’s Poort, Albany, H. Hutton! (Herb. D.) 
A tall, virgate plant, 2-3 ft. or more high, all parts more or less canescent. 
Leaves more divided than in any other ; the lower truly bipinnatifid ; lobes 1-2 
lines wide. Heads very small, 4-5 lines diameter. 
41. §. heterophylla (Th.! Cap. 622); stem herbaceous, erect or 
ascending, cobweb-woolly ; leaves coriaceous, the adult glabrous above, 
albo-tomentose beneath, the radical and lower ones tapering at base 
into a petiole, coarsely sinuate-toothed, the teeth tipped with spines, 
cauline clasping, sinuato-pinnatifid, undulate, the lobes short, simple 
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