Plumbago. | LXXVII. PLUMBAGINEEZ (OLIVER). 487 
2. P. amplexicaulis, Oliv. in Journ. Linn. Soc. xv. 96. Branches 
puberulous or glabrate, longitudinally suleate. Leaves 2-5 in. long, 
obovate-elliptical, broadly pointed, glabrous, continued below into the 
broadly alate petiole, which is conspicuously auricled at base. Flowers 
blue, in panicular spikes. Bracts ovate, shortly apiculate. Calyx 
costate, puberulous, sparingly glandular, 3-3 in. long. Corolla-lobes 
mucronate with the produced apex of the slender median nerve. An- 
thers exserted. 
South Central. Region about, Lake Tanganyika, Cameron! 
Not identified from elsewhere. 
3. CERATOSTIGMA, Bunge ; Benth. et Hook. fil. Gen. Plant. ii. 
p- 628. 
Differs from Plumbago in the eglandular calyx; stamens adnate, 
half the length of the tube of the corolla ; and the capitate rather than 
Spicate flowers. 
A small genus of temperate Asia and Abyssinia. Our species is peculiar to this 
Flora, though nearly allied to a Himalayan one. 
l. c. abyssinicum, Asch. in Schweinf. et Asch. Enum. p. 288. 
A shrub of 3-5 ft., with sulcate appressed-setose rigid somewhat zig- 
zag branches. Leaves oval or lanceolate, acute, narrowed to the base, 
8etulose above and beneath and setose-ciliate, sessile or shortly 
Petiolate, 1-12 in. long or smaller. Heads terminal, several. 
flowered. Bracts broadly ovate, cuspidate-acuminate, setulose and 
with a few long marginal bristles. Calyx tubular, acutely 5-lobed, 
strongly 5-costate ; ribs smooth; intercostal spaces setulose. eager 
Violet” or “rose; tube half as long again as calyx ; segments o 
limb “ oblong.” —Valoradia abyssinica, Hochst.; Boiss. in DC. Prodr. 
Mu. 695; V. patula, Hochst. ]. c. et in Flora, 1842, p. 240 (with gla- 
brate stem and leaves more glabrous above). 
mile Gand. Abyssinia, Schimper! Kretschmer. 
Oxprr LXXVIII. PRIMULACEE. (By Prof. Oliver.) 
Flowers regular, hermaphrodite. Calyx free or more or less ad- 
hate to the ovary? below (Samolus ) 5-fid or 4-5-partite 10 oe 
Corolla hypogynous (when the ovary is free), rotate or te ts 
late, 4-5-fid or -partite, or hypocrateriform, with a spreading fal Pe oF 
pub. Stamens as many as corolla-lobes, inserted upon t e soiled 
obes, opposite to the lobes. Ovary free (except in Bomber) Loaves 
With a free central placenta and indefinite ovules.—Her . 
radical oy cauline, exstipulate. Inflorescence various. pane 
att large Natural Order, most numerous in the cooler regions of the nort P 
Corolla imbricate. Ovary free. 1, Prout. 
Ves radical. Corolia hypocrateriform . . + - * 2, ARDISIANDRA. 
ee ves alternate. Corolla campanulate . - + + °* 
rola contorted, rotate or infundibuliform. 3. LystMACHIA. 
Capsule dehiscing longitudinally . 
