308 CONTKIBUTIONS FROM THE NATIONAL HERBARIUM. 



2. Drosera longifolia L. Sp. PL 1 : 282. 1753. 



Drosera anglica Huds. Fl. Angl. 135. 1778. 



Type locality: "Habitat in Europa ubique." 



Range: Subarctic regions, southward to Newfoundland, Idaho, and Cahfornia. Europe. 

 Asia. 



Specimens examined: Mount Adams, Henderson; Falcon Valley, Sul-sdorf 371. 



Zonal distribution: Canadian. 



CRASSULACEAE. Stonecrop Family. 



Flowers solitary axillary ; annual Tillaeastrum. 



Flowers cymose; perennials or biennials. 



Leaves serrate; flowers purple Rhodiola. 



Leaves entire; flowers yellow. 



Petals free to the base. . Sedum. 



Petals united below the middi(- . Gormania. 



1. TILLAEASTRUM. 



Leaves obtuse ; pedicels as long as the leaves 1. T. drummondii. 



Leaves acute: pedicels very short 2. T. aquaticum. 



1. Tillaeastrum drummondii (Torr. & Gr.) Britton, Bull. N. Y. Bot. Gard. 3: 1. 1903. 

 Tillaea drummondii Torr. & Gr. Fl. 1 : 558. 1840. 



Type locality: Texas. Collected by Drummond. 

 Range: Washington to California and Louisiana. 

 Specimens examined: Lake Chelan, 6^o/'ma t; 693. 



2. Tillaeastrum aquaticvmi (L.) Britton, Bull. N. Y. Bot. Gard. 3: 1. 1903. 

 Tillaea aquaiica L. Sp. PI. 1 : 128. 1753. 



Tillaea angustifolia Nutt. Torr. & Gr. Fl. 1 : 5.58. 1840. 

 Type locality: European. 



Range: Washington to Nova Scotia, southward to Lower California, Texas, and Mary- 

 land. Europe. 



Specimens examined: Parker, Elmer, July, 1898. 



RHODIOLA. 



1. Rhodiola integrifolia Raf. Atl. Journ. 1: 14G. 1832. 



Sedum frKjidum Rydbcrg, Bull. Torr. Club 28: 282. 1901. 



Type locality: "On the Rocky Mountains." 



Range: Alaska to California and Colorado. 



Specimens examined: Cascade Mountains, latitude 49°, toward Fort Colville, Lyall in 

 1860; Mount Adams, Suhsdorf 547 , 8.59; Mount Stuart, Brandegee 773. 



SEDUM. Stonecrop. 



Leaves spatulate, very glaucous 1 . 5. spathulifolium. 



Leaves not spatulate nor glaucous. 



Leaves subglobose, bright green 2. S. divergens. 



Leaves lanceolate, bioadest at base. 



Leaves becoming scarious; carpels divergent 3. S. douglasii. 



Leaves not becoming scarious. 



Perennial, carpels erect 4. S. stenopetahtm. 



Biennial, carpels divaricate 5. 5. leibergii. 



1. Sedum spathulifolium Hook. Fl. Bor. Am. 1: 227. 1834. 



Type locality: "Common on dry rocky places of the Columbia and Salmon Rivers." 

 Collected by Douglas. 



