110 CA PPARIDACEAE 



stem less than 1 dm. high; pod with rounded angles. 4. C. nana. 



Pod ovate; leaflets Unear. 5. C. oocarpa. 



Stipe shorter than the pod; leaflets oval or broadly oblong. 6. C. Palmerana. 



Family 54. DROSERACEAE. Sundew Family. 



1. DROSERA L. Sundew. 



Leaf-blades suborbicular or broader than long. 1. D. rotundifoUa. 



Leaf-blades elongate. 



Leaf-blades spatulate or oblanceolate ; seeds smooth. 2. D. longifolia. 



Leaf-blades linear or linear-oblanceolate ; seeds muricate. 3. D. linearis. 



Family 55. CRASSULACEAE. Stone-crop Family. 



stamens twice as many as the sepals. 



Flowers axillary, arranged in elongate racemes or spikes; petals rose-colored, distinct. 



1. Clementsia. 

 Flowers terminal, in cymes or one-side racemes. 



Petals more or less united, erect; corolla tubular. 2. Gormania. 



Petals distinct. 



Flowers polygamous or dioecious; carpels erect; petals in ours purplish. 



3. Rhodiola. 

 Flowers perfect; carpels spreading; petals in oxirs yellow. 4. Sedutvi. 



Stamens as many as the sepals; minute annual mud or water plants. 5. Tillaeastrim. 



1. CL EMENTSIA Rose. Red Orpine. l. C. rhodantha. 



2. GORMANIA Britton. l. G. debilis. 



3. RHODIOLA L. Rose-root, Rose-wort. 



Petals acute; follicles 3-5 mm. long, the beak 0.5 mm. long, divergent or recurved; 



dioecious. 1. B. inlegri folia. 



Petals abruptly acuminate; foUicles 6-8 mm. long; the beak 1 mm. long, ascending; 



polygamo-d'ioecious. 2. R. polygama. 



4. SEDUM L. Stone-crop, Orpine. 



Leaves linear, linear-oblanceolate, or oblong, terete or nearly so. 1. S. stenopetalum . 

 Leaves lanceolate to oblong or spatulate, more or less flattened. 



Leaves of the flowering stems lanceolate, broadest at the base. 2. S. Douglasii. 



Leaves spatulate or obovate, narrow at the base. 3. S. Leibergii. 



5. TILLAEASTRUM Britton. l. T. aquaticum. 



Family 56. PARNASSIACEAE. Grass of Parnassus Family. 



1. PARNASSIA. Grass of Parnassus. 



Petals fimbriate on the sides, at least below; free portions of the staminodia very short 

 and stout; leaf-blades reniform or cordate, usually broader than long. 

 Petals obovate, 5-nerved; staminodial scales with 5-9 lobes; sepals elliptic. 



1. P. fimbriata. 

 Petals oblong, 3-nerved; staminodial scales with 3-5 lobes; sepals narrowly lanceolate. 



2. P. rivularis. 

 Petals entire, not fimbriate; free portion of the staminodia long. 



Petals 5-9-veined, usually exceeding the sepals; capsule less than twice as long as 

 the sepals; bract some distance from the base. 

 Staminodia 7-15 in each fascicle; basal leaf-blades cordate or rounded at the 

 base. 

 Petals nearly twice as long as the sepals; hypanthium inconspicuous; stamin- 

 odia usually 9-15 in each fa.scicle. 3. P. paluslris. 

 Petals only shghtly exceeding the sepals; hypantliium conspicuous, obconic, 

 fully half as long as the .sepals and nearly as broad as high; staminodia 

 7-9"in each fascicle. 4. P. montanensis. 

 Staminodia 5-7 in each fascicle; basal leaf-blades acute at the base. 



5. P. parviflora. 

 Petals 3-veined, tliin, scarcely equalling the sepals; capsule twice as long as the sepals; 

 bract none or near the base. 6. P. Kotzebuei. 



Family 57. SAXIFRAGACEAE. Saxifrage Family. 



Placentae parietal, sometimes nearly basal. 



P'lowers solitary and axillary to leaf-like bracts, or 2-4 in small corymbs, each sub- 

 tended by a leaf-like bract ; sepals 4 ; petals wanting. 1 . Chrysosplenium. 



I'lowers in more or less elongate racemes or panicles. 



Ciynoecium of 2 or 3 equal or essentially equal carpels. 



