95- CRASSULACEAE — g6. SAXIFRAGACEAE 233 



6. Calyx clett nearly to the middle, large, inflated. Corolla urn- or almost 



bell-shaped. Stamens 8. Carpels not diverging. Stigmas capitate. 

 Undershrubs. — Species 5. Tropical and South Atrica. Some are used 

 as ornamental or medicinal plants. {Crassuvia Comm.) 



Bryophyllum Salisb. 

 Calyx divided to the middle or beyond, usually small 7 



7. Calyx divided to the middle, small, bell-shaped. Corolla tube- or bell- 



shaped ; segments short and broad, triangular to orbicular. Stamens 

 8. Carpels diverging. Stigmas capitate. — Species 15. Madagascar. 



(Under Kalanchoe Adans.) Kitchingia Bak. 



Calyx divided nearly to the base, rarely only to the middle, but then 

 corolla with oblong, elliptical, or ovate segments. Corolla usually 

 salver-shaped, with spreading segments. Stigmas obliquely truncate. 

 — Species 45. Tropical and South Africa. Some yield an aromatic 

 resin or are used in medicine. (Plate 59.) . . . Kalanchoe Adans. 



8. Stamens twice as many as the sepals or petals, 10, rarely 12. — Species 40. 



Some of them are used as ornamental or medicinal plants. (Including 

 Echeveria DC, Mticizonia DC, Pistorinia DC, and Umbilicus DC.) 



Cotyledon L. 

 Stamens as many as the sepals or petals, 5, rarely 6. Leaves opposite . 9 



9. Calyx as long as the corolla-tube, bell-shaped, divided to about the middle. 



Corolla bell-shaped, yellow. Small, stiff, glaucous herbs. — Species i. 



South Africa Grammanthes DC 



Calyx shorter than the corolla-tube, divided nearly or quite to the base. 

 Corolla funnel-shaped. Thick, succulent herbs or undershrubs. — 

 Species 4. South Africa. Used as ornamental plants. Rochea DC 



FAMILY 96. SAXIFRAGACEAE 



Petals 4 — 5, free or united below. Stamens as many or twice as many as the 

 petals, perigynous or epigynous. Anthers opening by two longitudinal sHts. 

 Ovary i- — 7-celled. Ovules numerous, inverted. Seeds with copious albumen, 

 rarely {Montinia) without albumen. — Genera ii, species 25. (Including 

 GROSSULARIACEAE.) (Plate 60.) 



1. Stem herbaceous. Styles 2-5, free. [Subfamily SAXIFRAGOIDEAE.] 2 

 Stem wood}^ rarely {Bereitice) herbaceous above, but then style simple. 



Leaves without stipules. Placentas parietal or septal 3 



2. Calyx with valvate aestivation. Stamens 5. Ovary inferior, i-celled^ 



with 2- — 3 placentas suspended from the apex of the cell. Leaves 

 opposite, entire. — Species 4. Tropical and South Africa and Egypt. 



Vahlia Thunb. 



Calyx with imbricate aestivation. Stamens 8 — 10. Ovary 2 — 5-celled, 



with the placentas attached to the dissepiments. — Species 9. North 



Africa and Abyssinia. Some species are used as ornamental or medicinal 



plants Saxifraga L. 



