1032 ASCLEPIADE& (Brown). | Duwalia. 
Described from living plants, and specimens preserved in fluid. This is one of 
the commonest species in cultivation and varies in minor details very considerably. 
Specifically D. hirtella is closely related to D. radiata, and is usually easily 
discriminated by the very distinct cilia on the corolla-lobes, but is clearly 
connected with that species by some forms of var. obscura in which the cilia are 
quite minute and scarcely noticeable except under a lens, possibly these really 
represent D. radiata, see note under that species. 
10. D. radiata (Haw. Syn. Pl. Succ. 45); stems 1-2 in. long, 
3-3 in. thick, globose or oblong, obtusely 4—5-angled ; angles with 
stout conical acute teeth ; flowers usually 2 together, developing in 
succession near the base of the stems; pedicels 3-1 in. long ; sepals 
lanceolate, acute or acuminate ; corolla 10-14 lin. in diam., dark 
chocolate ; lobes 4-5 lin. long, very spreading, closely replicate to 
the base into vertical plates 14-2 lin. deep, glabrous and not ciliate ; 
annulus 4—5 lin. in diam., apparently about 1 lin. high, nearly 
circular, glabrous; outer corona about 3 lin. in diam., obscurely 
pentagonal or nearly circular, reddish-brown ; inner corona-lobes 
dull yellowish or with a reddish tinge. G. Don, Gen. Syst. iv. 122 ; 
K. Schum. in Engl. und Prantl, Pflanzenfam. iv. ii. 277 ; Schlechter 
in Journ. Bot. 1898, 476, excl. all syns. not here quoted. D. replicata, 
Sweet, Hort. Brit. ed. 1, 276 ; G. Don, Gen. Syst. iv. 122 Schlechter 
in Journ. Bot. 1898, 477. Stapelia radiata, Sims, Bot. Mag. t. 619; 
Ait. Hort. Kew. ed. 2, ii. 93 ; Schultes, Syst. Veg. vi. 45 ; Lodd. Bot. 
Cab. t. 831 ; Deene in DO. Prodr. viii. 663, not of Jacquin, Willdenow, 
Link, Hornemann or Sprengel. 8. replicata, Jacq. Stap. t. 15; Poir. 
Encycl. Meth. Suppl. v. 232; Willd. Enum. Pl. Hort. Berol. 286 ; 
Schultes, Syst. Veg. vi. 45; Link, Enum. Pl. Hort. Berol. i. 258 ; 
Spreng. Syst. Veg. i. 837, excl. syns. ; Dietr. Syn. Pl. ii. 884 ; Deene 
in DC. Prodr. viii. 662. 
Sourn Arrica: without locality; introduced into cultivation in 1799 ex 
Loddiges. 
[am quite unable to determine if this is really a distinct species or identical 
with a minutely ciliated form of D. hirtella, var. obscura noted under that plant. 
According to all authors, D. radiata is quite destitute of cilia on the corolla-lobes, 
and Jacquin (who figures it under the name of Stapelia replicata) represents the 
annulus also as glabrous. The only example I have seen that might possibly be 
this species is a specimen in Kew Herbarium named ‘‘ Duvalia radiata” and dated 
1813, but this differs in having a few minute cilia on the lobes and the annulus 1s 
puberulous on the rim. The cilia might easily be overlooked without the aid of a 
lens, so if this specimen really represents the plant figured by Sims (on which the 
species is founded), then the minutely ciliated form of D. hirtella, var. obscura also 
belongs to it. The stems of D. replicata as represented by Jacquin are obviously 
abnormally elongated, owing to some condition of cultivation. Concerning 
Stapelia radiata, Jacq., see a note under D. elegans, Masson. : 
11. D. compacta (Haw. Syn. Pl. Succ. 46, and Suppl. 14) ; stems 
4-1 (rarely 2) in. long, } in. thick, globose or oblong, 4—5-angled, 
the angles formed of series of rounded apiculate tubercles, dul 
green ; flowers 1-5, successively developed at about the middle of | 
the young stems ; pedicels }—] in. long ; sepals 1-1} lin. long, 
