230 OXVIII. THYMELHZACEH (PEARSON). ( Lasiosiphon. 
involucral bracts 4—5, broadly ovate, unequal in length, the exterior 
shorter than the interior, thinly membranous, persistent, rounded at the 
apex, erect and more or less closed during flowering, about } as long as 
the flowers. Flowers 5-merous, orange-coloured. Calyx-tube cylindric, 
densely silky, villous, especially below the articulation, 4—3 in. long; 
lobes obovate-oblong, densely silky without, 3 lin. long, 1-14 lin. broad. 
Petals very thinly membranous, pale yellow, broadly ovate or oblong, 
incised at the apex, about 3 as long as the calyx-lobes. Ovary puberu- 
lous above the middle, otherwise glabrous.—L. Stuhlmanni, Gilg, |.c. 267. 
Gnidia Emini, Engl. & Gilg, l.c. 265; Gilg in Engl. Pf. Ost-Afr. C. 283. 
G. Stuhlmanni, Gilg in Engl. Jahrb. xix. 267; Engl. Pfl. Ost-Afr. l.c. 
Mozamb. Distr. German East Africa: forest west of Irangi, Stuhlmann, 
4224! Usagura; Mpwapwa, 3000 ft., Stuhlmann, 248; Kidete, Stuhlmann, 185! 
6. L. genistifolius, Engl. & Gilg in Engl. Jahrb. xix. 268. Stem 
stout, more or less branched above, erect, few-flowered, densely clothed 
with yellow tomentum. Leaves lanceolate, membranous, acute, nar- 
rowed at the base into the very short petiole, very ,densely yellow- 
tomentose on both sides, 1-1} in. long, 2-34 lin. broad. Heads 10—14- 
flowered, peduncled ; leafless peduncle 4-4 in. long ; involucra] bracts 6-7, 
linear-lanceolate, very densely white-pilose, # as long as the flowers. 
Flowers 5-merous. Calyx-tube cylindric, very densely silky-tomentose,: 
4-4 in. long ; lobes linear-oblong, emarginate, very densely silky-pubes- 
cent without, 1-14 Jin. long, about lin. broad. Petals linear-setiform or 
filiform, thinly membranous, 4-4 as long as the calyx-lobes. Ovary 
villous with long erect hairs.—Gnidia genistifolia, Eng). & Gilg, l.c. 267. 
Lower Guinea. Angola: between Sanza and Malange, Pogge, 212. 
* 
7. L. glaucus, Fresen. in Flora, 1838, 603. A shrub or tree 
10-30 ft. high ; branches finely pubescent when young, later glabrous. 
Leaves alternate, lanceolate, subsessile, with a more or less indurated 
acute apex, finely and obscurely pubescent near the base, otherwise 
glabrous, glaucous, 14-13 in. long, 5-6 lin. broad. Heads many- 
flowered, terminal on short leafy branches; involucral bracts 8-12, in 
2 series, broadly elliptic, obtuse, densely and very finely pubescent, 
almost as long as the flowers. Flowers 5-merous, shortly pedicelled ; 
pedicel about 1 lin. long, pubescent. Calyx-tube not articulated, 
densely villous on the outside with stiff erect yellowish hairs, especially 
at the base, prominently ridged within, 3-3 in. long; lobes spreading 
during flowering, oblong-elliptic, rounded at the apex, pubescent on 
the margins, villous on the back, especially in the middle line, with a 
tuft of stiff hairs projecting beyond the apex, about } as long as the 
tube. Petals linear or more or less broadly spathulate, thickened and 
entire or more or less deeply bi- or tri-fid at the apex, about $ as 
long as the calyx-lobes. Ovary villous with long stiff erect hairs; 
style about + in. long; stigma capitate; hypogynous disc short, 
annular, lobed. Mature fruit not seen.—Meisn. in DC. Prodr. xiv. 
593; Engl. Hochgebirgsfl. Trop. Afr. 309. Gnidia glauca, Gilg in Engl. 
Jahrb. xix. 265 inobs. G. Volkensii, Gilg in Engl. Pf. Ost-Afr. C. 283. 
