388 l. CRASSULACEiE (britten). [Tillcsa. 



iii. 382 ; A. Rich. Fl. Abyss, i. 306 ; Don, Gen. Syst. iii. 99 ; Harv. 

 Fl. Cap. ii. 329. Tillcsa aquatica, Lamarck, Illust., t. 90, non Linn. 



Nile Land. Mountains of Abyssinia, Quartin- Dillon. 

 Also occurs in N. and S. 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. 382 ; B. abyssinica, A. Rich. Fl. Abyss, i. 306 ; B. Vaillantii, 

 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. C. ahysrinica 



Leaves obovate-lanceolate, 4 i n - long 2. C. globularioides. 



Leaves obovate, 2-3 -lines long 3. C. sediformis. 



1. C. abyssinica, A. Rich. Fl. Abyss, i. 309. Root tuberous, sub- 

 napiform, fibres few, thick, descending. Stem erect, 6 in.-2| ft. high, 

 simple, cylindrical, more or less purplish, papillose throughout, or 

 sometimes glabrous 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 a 

 compound corymb 2-4 in. broad. Calyx-lobes glabrous, oblong-ovate 

 or lanceolate, acute or subacute. Petals oblong-lanceolate, acute or 

 obtuse, free or subconnate at the base, scarcely twice as long as the 

 calyx. Stamens equalling or rather shorter than the petals. Squa- 

 mulae very small, truncate, cuneate-obcordate. Carpels smooth, oblong, 

 acuminate. — Walp. Ann. ii. 667. C. Mannii, Hook. f. in Journ. Linn. 

 Soc. vii. 193. Rochea dichotcmia, Hochst., and R. dichotoma, Hochst. in 



