45 
CRASSULA, Linn., sect. TILLAEOIDEAE, Schonl. 
IV. Filicaulis group. Richly branched annuals with elongated inter- 
nodes and divaricate branches. Flowers solitary on filiform pedicels, 
chiefly in the axils of the upper leaves sometimes also terminal, normally 
5-merous. Carpels pluri-ovulate. 
A. Pedicels elongating after flowering. 
8. Cr. expansa, 
B. Pedicels not elongating after flowering. 
a. Calyx and corolla about equal in length. 
1. Pedicels 12 — 2'4 cm. long. 
9. Cr. tenuis, Wolley Dod. 
2. Pedicels 3 — 5 mm. long. 
10. Cr. oblanceolata, Schonl. et Bak. f. 
b. Calyx much longer than the corolla. 
11. Cr. Lambertiana, Schonl. et Bak. f. 
V. Glomerata group. Landplants. Stem usually richly branched with 
usually multi-flowered axillary or terminal inflorescences. Flowers normally 
5-merous. Carpels with 2 (rarely 1) ovules. 
A. Flowers mostly in glomerate or sometimes eymoso-paniculate 
terminal inflorescences. 
12. Cr. glomerata, Linn. 
B. Flowers in few-flowered axillary and terminal short inflorescences. 
a. Calyx-lobes longer than corolla. 
1. Leaves linear, calyx-lobes linear, acute. Petals oblong, 
blunt. Ovaries 2-ovuled. 
13. Cr. Zeyheriana, Schonl. 
2. Leaves ovate. Calyx-lobes ovate-obtuse. Petals lan- 
ceolate. Ovaries 1-ovuled. 
14. Cr. parvipetala, Schonl. 
b. Calyx-lobes shorter than corolla. Stem prostrate, white, 
angular. 
15. Cr. albicaulis, Harv. 
C. Flowers in more or less lax inflorescences. 
a. Stem and leaves hairy. Leaves lanceolate. 
16. Cr. hirsuta, Schonl. et Bak. f. 
b. Stem and leaves glabrous. Leaves oblong, ovate or 
spathulate. 
1. Pedicels short. 
17. Cr. minutiflora, Schonl. et Bak. f. 
2. Pedicels slender. 
18. Cr. tenuipedicellata, Schonl. et Bak. f. 
VI. Muscosa group. Small annual or perennial plants with mosslike 
