292 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Endosperm present, usually copious and 
fleshy; stipules usually wanting. 
Herbs. 
Carpels as many as the sepals; 
plants succulent............ 58. CRASSULACEAE (p. 292). 
Carpels fewer than the sepals; 
plants seldom or never suc- 
culent. 
Staminodia wanting; carpels 2 
or rarely 3, distinct or 
only partly united..._.. 59. SAXIFRAGACEAE (p. 294). 
Staminodia present; carpels 3 
or 4, wholly united into 
a I-celled gyncecium....60, PARNASSIACEAE (p. 298). 
Shrubs or trees. 
Leaves opposite; fruit a leathery 
capsule, more or less adnate 
to the hypanthium.......... 61. HYDRANGEACEAE (p. 298). 
Leaves alternate; fruit various. 
Fruit of thin-walled follicles, 
free from the hypan- 
thium. (Stipules pres- 
ent. Opulaster) ........64. ROSACEAE (p. 305). 
Fruit a berry; hypanthium 
adnate to and prolonged 
beyond the ovary....... 62. GROSSULARIACEAE (p. 301). 
58. CRASSULACEAE. Orpine Family. 
Succulent herbaceous annuals or perennials, 30 em. high or less, with flowers in 
cymes or |-sided racemes; flowers mostly perfect (except in one genus), symmetrical 
and regular; sepals and petals 5, the former somewhat united at the base; stamens 1°; 
carpels 5; follicles 1-celled, dehiscent along the ventral suture. 
KEY TO THE GENERA. 
Inflorescence axillary..............-..0002220220022.222... 1. CLEMENTSIA (p. 292), 
Inflorescence terminal, cymose. 
Flowers yellow or purplish, never white, polygamous; 
plants usually 20 to 30cm, high................ 2. RyoproLa (p. 293). 
Flowers white or tinged with pink, rarely yellow, per- 
fect; plants usually less than 10 cm. high....... 3. Sepum (p. 293). 
1. CLEMENTSIA Rose. 
Perennial, 10 to 30 cm. high, glabrous, with usually numerous stems; leaves flat, 
entire or toothed; flowers in axillary racemes or cymes, the petals rose or white, 
twice as long as the calyx; follicles erect, with spreading tips. 
1, Clementsia rhodantha (A. Gray) Rose, Bull. N. Y. Bot. Gard. 3: 3. 1903. 
Sedum rhodanthum A. Gray, Amer. Journ. Sci. II. 33: 405. 1862. 
TYPE LocaLity: Rocky Mountains of Colorado. 
Rance: Montana to Arizona and northern New Mexico, 
New Mexico: Pecos Baldy (Bailey 614). Meadows, in the Arctic-Alpine Zone, 
