402 CH. LABIATAE (BAKER). [ Plectranthus. 
decurrent edges; lateral as long, lanceolate-deltcid, acuminate ; lower 
longer, lanceolate-subulate. Corolla pubescent, yellow ; tube short. 
Mozambd. Dist. (ierman East Africa : Usambara: Masheua, 1500-1600 ft., 
Holst, 3573 ! 
3. P. biflorus, Baker. An undershrub, with square woody 
branchlets, clothed with firm spreading strong brown hairs. Leaves 
unknown, produced after the flowers. Inflorescence a racemose terminal 
panicle ; branches short, erecto-patent ; flowers solitary ; pedicels 1 in. 
long, erecto-patent ; bracts minute or obsolete. Fruit-calyx 4 in. iong ; 
tube cylindrical, glandular-pubescent, rather recurved ; upper tooth 
orbicular-cuspidate, } the length of the tube; the others longer, lan- 
ceolate-cuspidate. Corolla not seen. 
Mozamb. Dist. British Central Africa: Nyasaland; between Kondowe and 
Karonga, 2000-6000 ft., Whyte ! 
Very near P. tetragonus, Giirke, from which it differs by its long calyx-tube. 
4 P. modestus, Baker in Kew Bulletin, 1895, 72. Stems slender, 
erect, annual, branched, pubescent, under 1 ft. long. Leaves few, 
sessile, lanceolate, the largest 14-2 in. long, distinctly crenate, green and 
glabrous on both surfaces. Inflorescence racemose, lax, axillary ; whorls 
2~3-flowered ; bracts minute; pedicels longer than the calyx. Calyx 
pubescent, } in. long in the flowering stage; upper tooth orbicular, 
the others narrow, acute. Corolla } in, long; tube twice the length of 
the calyx; upper lip small; lower larger, convex. Stamens included. 
Mozamb. Dist. British Central Africa : Urungu ; Fwambo, Carson! 
+. P. stenophyllus, Baker. A perennial, with a slender simple 
erect pubescent stem 1 ft. long. Leaves sessile, lanceolate, subentire, 
very pubescent, ascending, 2-3 in. long, }—4 in. broad, with copious 
black dots. Inflorescence racemose, long, lax, terminal; whorls j-b- 
flowered ; pedicels long, pubescent. Flower-calyx pubescent, } in. 
long; tube campanulate; upper tooth ovate, as long as the tube ; 
lower small, deltoid-cuspidate. Corolla 4 in. long, pubescent outside ; 
lower lip oblong-navicular, rather shorter than the tube. 
Mozamb. Dist. British Central Africa: Nyasaland; near Blantyre, Las/ ! 
6. P. zombensis, Baker. A perennial, with erect simple or 
slightly-branched stems 2 ft. long, pubescent upwards. Leaves sessile, 
oblong, crenate, pubescent, ascending, 2—3 in. long. Inflorescence @ 
slightly branched racemose panicle, moderately dense, 2-3 in. long; 
whorls many-flowered ; pedicels short. Flower-calyx pubescent, § in. 
long; tube campanulate; upper tooth ovate; 4 lower longer, lanceo- 
late. Corolla twice as long as the calyx. 
_ Mozamb. Dist. British Central Africa: Nyasaland, summit of Mount 
Zomba, Buchanan, 395! : 
7. P. Buchananii, Baker. Perennial. Leaves oblong, deeply 
crenate, narrowed gradually to a sessile base or a distinct petiole, 
