Cephalostigma.'] Lxxv. campanolacEvE (hems ley). 473 



reduced to minute bracts ; midrib prominent. Flowers minute, very 

 numerous, on filiform pedicels 4-8 b"nes long. Calyx less than one 

 line long, lobes equalling the tube, triangular, with a raised margin 

 and midrib. Petals about a line long, linear or slightly oblanceolate. 

 Capsule glabrous, hemispherical or obconical, crowned with the persis- 

 tent calyx-lobes, obscurely 5-ribbed. — G. Perrottetiiy Hook. fil. in Journ. 

 Linn. Soc. vii. p. 204, not of A. DC. 



TTpper Guinea. Cameroons Mountains, 7,000 ft., Mann! 



This differs so much, not only in size, from tho authentic specimens of C. Perrot- 

 tetii that it has Lean considered necessai'y to give it specific rank here, though it is 

 possible that more complete material may lead to all the African forms being united 

 under one species extending both to Asia aud America. 



4. C. Prieurei, A. DC. Prodr. vii. p. 420. A dwarf glabrous 

 herb, 3-4 in. bigli ; stem hard and woody and naked at the base, 

 branching upwards ; branches very slender, many-iiowered. Radical 

 leaves not seen ; cauline alternate, sessile at the base of the branches, 

 linear, 2-3 lines long, entire, with a white undulate margin, glabrous ; 

 upper ones very small, subulate. Flowers minute, very numerous, pa- 

 niculate ; peduncles often dichotomous ; pedicels filiform, 4 lines long. 

 Calyx-lobes subulate, half a line long. Petals linear, scarcely twice as 

 long as the calyx-lobes. Capsule obconical, 5-ribbed, about a line long. 

 — Description from De Candolle. 



irpper Guinea. Senegal, Leprieur ^ Perrottet. 



The description agrees in many particulars with C. ramosissimum, but tho glabrous 

 branches and leaves and subulate calyx-lobes are points of difference. 



4. LIGHTPOOTIA, Lher. ; Benth. et Hook. f. Gen. PI. ii. p. 555. 



Calyx-tube adnate to the ovary, hemispherical turbinate more 

 rarely obconical ; lobes persistent. Corolla deeply 5-lobed or almost 

 parted to the base. Stamens free from the corolla, filaments dilated at 

 the base, anthers free. Ovary inferior half inferior or nearly superior, 

 2-5-celled ; placentas stipitate, usually with few ovules ; stigma 2-5- 

 lobed. Capsule dehiscing loculicidally at the top into as many valves 

 as there are cells. — Undershrubs or annual biennial or perennial herbs, 

 with alternate, rarely opposite or fasciculate, usually small narow rigid 

 entire or toothed leaves and very small blue white or pink variously 

 arranged flowers. 



An African genus of about 40 species, chiefly extratropical, one extending to 

 Madagascar, 



Ovary and capsule inferior or half inferior. 

 Undershrubs ; ovary 3-celled. 

 Leaves lanceolate or oblong. 



Flowers snbspicate ; calyx pilose 1. L. marginata. 



Flowers cymose paniculate ; calyx glabrous ... 2. L. abyssinica. 



Leaves linear-subulato crowded Z. L. ttnuifolia. 



Biennials with fusiform roots and a capitulate inflores- 

 cence ; ovary 3-celled. 

 Stem 1-Hft. high ; lower cauline leaves 4-8 lines long, 



narrowed into a petiole 4. Z. collomioiden. 



