388 L. CRASSULACEH (BRITTEN). [ Tillea. 
iii. 882; A. Rich. Fl. Abyss. i. 806; Don, Gen. Syst. iii. 99; Harv. 
Fl. Cap. ii. 829. Tillea aquatica, Lamarck, Ilust., t. 90, non Linn. 
Nile Land. Mountains of Abyssinia, Quartin-Dillon. 
Also occurs in N, and §. Africa, and in S. Europe. 
6. T. aquatica, Linn. Fl. Suec. No. 156. Stem erect or creeping, 
not much branched, not dichotomous, 3-4 in. long, Leaves linear- 
lanceolate, subacute, rather fleshy, connate at the base, 2-3 lines long. 
Flowers subsessile. Petals oblong, acute, connivent. Carpels ovate- 
oblong. In other respects like the preceding.—Bulliarda aquatica, DC. 
Prod. iii. 882; B. abyssinica, A. Rich. Fl. Abyss. i. 806; B, Vazillanti, 
Schimper, non DC. 
Nile Land. Abyssinia, Schimper! Dillon! 
Also in North Europe and Germany. 
2. CRASSULA, Linn.; Benth. et Hook. f. Gen. Plant. i. 657. 
Flowers pentamerous. Calyx 5-partite or 5-fid, lobes erect or 
spreading. Petals 5, free or connate at the base, erect or spreading. 
Stamens 5, as long as or shorter than the petals. Scales various, very 
short in Tropical African species. Carpels 5, narrowed into short styles 
with small stigmas; ovules numerous. Follicles 5, many-seeded.— 
Herbs, with thick leaves and stems. Leaves opposite, connate, fleshy, 
entire, glabrous or pubescent, with cartilaginous margins. Flowers 
small, white or rose-coloured, cymose. 
A large genus, of about 120 species, the great majority of which are peculiar to the 
Cape. The Tropical African species are endemic. 
Leaves linear-lanceolate, 1-6 in. long . . . . . . . . . 1. €. abyssinica 
Leaves obovate-lanceolate, }in.long. . . . . . . . . « 2. C. globularioides. 
Leaves obovate, 2-3 lineslong . ..... 2.2.2.2. +. 3. O. sediformis. 
1. C. abyssinica, 4. Rich. Fl. Abyss. i. 309. Root tuberous, sub- 
napiform, fibres few, thick, descending. Stem erect, 6 in.—23 ft. high, 
simple, cylindrical, more or less purplish, papillose throughout, oF 
sometimes glahrous in the lower portion. Radical leaves 3-6 in. long, 
linear-lanceolate, acute or subacute, fleshy, erect, glabrous; stem- 
leaves 1—3 in. long, connate in an elongate sheath nearly an inch long, 
often somewhat glaucous, broadly linear or oblong or even subcordate, 
obtuse ; bracts foliaceous; margins of leaves and bracts fimbriate- 
papillose. Flowers numerous, small, “ white or purple,” star-like when 
expanded, shortly pedicellate, in much-branched spreading rounded 
panicles, or in densely congested many-flowered cymes arranged in @ 
compound corymb 2-4 in. broad. Calyx-lobes glabrous, oblong-ovate 
or lanceolate, acute or subacute. Petals oblong-lanceolate, acute oF 
obtuse, free or subconnate at the base, scarcely twice as long as the 
calyx. Stamens equalling or rather shorter than the petals. Squa- 
mule very small, truncate, cuneate-obcordate. Carpels smooth, oblong, 
acuminate.— Walp. Ann. ii. 667. C. Mannii, Hook. f. in Journ. Linn. 
Soc, vii. 193. Rochea dichotoma, Hochst., and R. dichotoma, Hochst. in 
