Plectranthus. | CII. LABIAT (BAKER). 413 
49. P. albus, Giirke in Hngl. Jahrb. xix. 202. Stems branched, 
%-10 ft. long; branchlets pubescent or subtomentose. Leaves mem- 
branous, distinctly petioled, 2-21 in. long, ovate, cordate or rounded at 
the base, acute, crenate, pubescent on both sides. Inflorescence a race- 
mose panicle; whorls remote, 6-flowered ; cymes distinctly peduncled ; 
pedicels 4—! in. long ; bracts ovate, acute. Fruit-calyx !—! in. long, 
declinate, pubescent; upper tooth broader, deltoid-ovate, acute, the 
others shorter, subequal, deltoid, acute or acuminate. Corolla white, 
finely pubescent. 
y Mozamb. Dist. German Kast Africa: Kilimanjaro, 5000-6000 ft., Volkens, 
44. 
Near P. laxiflorus, Benth. 
50. P. violaceus, (iirke in Engl. Jahrb. xix. 201. Stems erect, 
branched, 6-7 ft. long; branchlets glandular-pubescent. Leaves 
membranous, long-petioled, ovate, the lower 5—6 in. long, 3-4 in. broad, 
acute or acuminate, rounded at the base, strongly crenate, glabrous on 
both sides. Inflorescence a lax racemose panicle; cymes distinctly 
peduncled ; whorls 6-flowered; pedicels }—! in. long; bracts small, 
oblong-lanceolate. Fruit-calyx 4 in. long, declinate, glandular-pubes- 
cent; upper tooth largest, ovate-deltoid, acute, the others rather 
shorter, deltoid, acute, subequal. Corolla violet. 
Mozamb. Dist. (German East Africa: Usambara ; Lutindi, 5000 ft., Holst, 
3317 ! 
Near P. laxiflorus, Benth. 
51. P. hylophilus, Giirke in Engl. Jahrb. xix. 203. Stems.’ 
branched, 6-7 ft. long; branchlets glandular-pubescent. Leaves long- 
petioled, membranous, ovate, the lower + in. long, 3 in. broad, cordate 
or subcordate at the base, acuminate, deeply serrate, both sides sparsely 
clothed with adpressed hairs. Inflorescence a lax racemose panicle ; 
cymes 3-flowered, distinctly peduncled ; bracts lanceolate, acuminate ; 
pedicels } in. long, glandular-pubescent, as are the calyx and rhachis. 
Calyx very accrescent, finally } in. long; upper tooth broader, ovate- 
deltoid, acuminate ; lateral shorter, lanceolate, acuminate ; lower longer, 
sub-rigid, subulate. Corolla violet, 4—5 lin. long. 
Upper Guinea. Cameroons: near Mann’s Spring, 7200 ft., Preuss, 815! 
52. P. orbicularis, Giirke in Hngl. Jahrb. xix. 203 Stems 
but little branched, pubescent, 1} ft. long. Leaves long-petioled, orbi- 
cular, membranous, 1-2 in. long and broad, obtuse or cuspidate, deeply 
cordate at the base, deeply toothed, glabrous, gland-dotted beneath. 
nflorescence racemose, lax ; whorls distant, 6-flowered : cymes shortly 
peduncled; bracts round or broadly ovate; pedicels } in. long, shortly 
pubescent, as are the calyx and axis. Fruit-calyx | in. long ; upper 
tooth broadly ovate, cuspidate : lateral teeth deltoid, acuminate ; lower 
lanceolate-deltoid, acuminate, longer than the upper. Corolla declinate. 
Mozamb. Dist. Zanzibar, Stuhlmann, 826, German East Africa: Usambuara : 
Upanga Swamp, Holst, 4159. 
