Plectayiuthus.] cii. labiaim: (baker). 409 



ovate, deeply crenate, membranou?, slightly liairy, the lower 'J-D in. 

 long. Inflorescence a very lax racemose panicle ; branches :>-."», the end 

 one ()-l) in. long ; central whorls «i-S-flowered ; pedicels lon^', pubes- 

 cent. Fruit-calyx |- in. long ; tube oblong ; uj)per tooth small, ovate, 

 with decurrent edges ; lateral deltoid-cuspidate ; lower 2 lanceolate, cus- 

 pidate. Corolla l-\ in. long; lower lip as long as the tube. 



Upper Crulnea. Cainerooiis : Cameroon Mountain, liOOO ft., Mann, 1947! 



3;^>. P. rupestris, Maker. Stems with a shrubby bast, densely 

 hairy. Leaves distinctly petioled, cordate-ovate, membranous, deeply 

 crenate, densely pubescent, 1^-2 in. I'^ng. Inflorescence racemose, lax, 

 terminal, o-5 in. long ; whorls many-flowered ; rhachis and pedicels 

 densely pubescent, the latter longer than the calyx ; bracts minute, 

 deciduous. Calyx ^-J in. long, pubescent ; tube campanulate ; upper 

 tooth ovate, as long as the tube ; lateral and lower large, lanceolate. 

 Corolla twice as long as the calyx. — Coleus ?'upestris, Hochst. in Schimp. 

 PI. Abyss. No. 2172. 



Uile Iiand. Abyssinia : near BellaUa, 5000-7000 ft., Schlmper, 2172 ! 

 Somaliland : Ahl Mountains, near Maid, :350(» ft., Hildebrandt, 1430 I and cultivated 

 specimen \ 



Near P. niadaf/asraricnsi-s; lienth. 



84. P. quadridentatus, Sclnceinf. PL Abyss. Sept. Exsicc, No. 

 2()8G. A perennial herb, with slender branched pube.«cent stems, 

 decumbent at the base, 8-4 in. long. Leaves shortly petioled, ovate, 

 very small {\ in. long), obtuse, dentate, cuneate at the base, thick and 

 fleshy, densely pilose on both surfaces. Inflorescence short, lax, 

 racemose; whorls S-O-flowered ; bracts oblong, foliaceous; pedicels 

 \-\ in. long. Fruit-calyx pilose, J in. long ; tube campanulate ; upper 

 tooth ovate, obtuse, as long as the tube ; lateral deltoid-cuspidate ; 

 lower lanceolate. Corolla not seen. 



wile Xiand. Eritrea; Mount Alam Kale, nortli-west of Aidereso, Sr/nreinfurfh 

 6f Riva, 2086 ! 

 Also in Arabia. 



85. P. cyaneus, Giirke ia Engl. Jahrh. xix. 20S. Stems erect, 

 branched, pubescent below, subtomentose above. Leaves petioled, 

 thick, broadly ovate, lJ-2 in. long, obtuse, rounded or subcordateat the 

 base, deeply crenate, subtomentose on both surfaces. I-ower whorls 

 remote, 8-10-flowered ; cymes sessile; bracts ovate; pedicels \-\ in. 

 long, clothed like the axis and calyx with long spreading haifs. Fruit- 

 calyx jV-tV i"- lo"gj dotted with yellow glands ; upper tooth broadly 

 ovate, acute, with the margins scarcely decurrent ; lateral teeth 

 lanceolate-deltoid, acuminate ; lower longer, lanceolate-subulate. Corolla 

 blue, dotted with yellow glands. 



X^ozamb. Sist. German East Africa : Usambara ; Silvi near Masheua, 16(50 ft., 

 Kolst, 8850 ! near Kwa Msliuza in the Handei Mountains, 50CK) ft., lloht, 8984 : 



