Piumbago.] PLUMBAGINE® (Wright). 425 
CxnTRAL ReGIoN: Somerset Div.; on the Bosch Berg, Burchell, 3182! 
3192! 
Eastern Recion; Natal; Inanda, Wood, 333! and without precise locality, 
Gerrard, 1962! Sutherland ! 
2. P. zeylanica (Linn. Sp. Pl. ed. i, 151); stem woody, sub- 
seandent, striate, much branched; leaves ovate or oblong, acute, 
shortly and abruptly contracted into the petiole, about 12 in. long 
and 1 in. wide, glabrous ; petiole } in. long, amplexicaul and slightly 
auricled at the base; rhachis of spike glandular; bracteoles oblong, 
acuminate, + the length of the calyx ; calyx } in. long, bearing long- 
stalked glands throughout its length, otherwise glabrous; corolla 
white ; tube 1 in. long; limb } in. in diam. ; lobes obovate, obtuse 
or retuse, mucronate ; capsule elongate-oblong, tapering and 5-sulcate 
upwards. Bot. Reg. 1846, t. 23; Bowss. in DC. Prodr. xii. 692; 
Wight, Ill. t. 179; Benth. Fl. Austr. iv. 267; C. B. Cl. in Hook. 
J. Fl. Brit. Ind. iii. 480. P. flaccida, Moench, Meth. 429. P. sar- 
mentosa, Lam. Ill. i. 470, partly. P. capensis, var. alba, Williams, 
Catal. 1886, 26. Thela alba, Lour. Fl. Cochinch. 119. 
KaLanaRi Reaion: Transvaal; Berea, Barberton, 2918 ft., Thorncroft in 
Herb. Wood, 3774! Kaap Valley, Barberton, 2000 ft., Galpin, 1298! 1849! 
EastERN Reeion: Natal; Weenen County, Wood, 3555! Delagoa Bay, 
Monteiro, 41! 
Also in Tropical Africa, India, Malay Archipelago, Pacific Islands and 
Australia, 
Imperfectly known Species, 
3. P. tristis (Ait. Hort. Kew. ed. 2, i. 324); stem woody, slender, 
flexuous, much and intricately branched, shortly glandular-seabrid ; 
leaves obeordate-cuneate, retuse, mucronate, tapering into the petiole, 
minutely scabrid, glandular-punctate, } in. long including the 
petiole, 2 lin. wide at the apex; flowers few, remote, in short 
terminal spikes; bracteoles pubescent, the lowest oblong, 4 the 
length of the calyx, the lateral filiform, very small; calyx 5 lin. 
long, shortly and adpressedly viscid-pubescent, also with very long 
reddish spreading sete on the ribs; corolla-tube more than twice 
as long as the calyx; limb unknown; capsule oblong, acutely 5- 
angled, puberulous on the angles above. Boiss. in DC. Prodr. xii. 
693. P. vogeliefolia, Eckl. § Zeyh. ex Boiss, l.c. 694. 
South Arrica: without locality, Masson! 
Said to have been introduced into cultivation in 1792, but is now lost. 
Ill. VOGELIA, Lam. 
Calyx 5-partite almost to the base, strongly 5-nerved, appearing 
winged from the out-turned margins of the segments, strongly 
transversely wrinkled, persistent. Corolla funnel-shaped ; lobes 5. 
Stamens hypogynous. Ovary more or less 5-angled ; style terminal, 
