ACCOUNT OF GENUS SEDUM AS FOUND IN CULTIVATION. 135 

 Flowers February-March (gentle heat), March-April (cold frame). 



Not hardy. ,, _. . 



HABiTAT.-Mountains of North-Western Mexico. 



The stems of alamosanum arise in autumn or wmter. grow erect 

 and unbranched till the following autumn, when they become straggling 

 and branch slightly at various points, each branch bearing in the fol- 

 Lwing spring a few flowers at its summit ; the stems die after flowermg. 

 n hese'^respects they are closely paralleled by those of the green- 

 leaved and yellow-flowered S. diver^folium. The corolla, when fully 

 expanded is flat, and with the equally long and smiilarly coloured 

 calyx, gives the effect of a ten-petalled pale-reddish flower 



Received from the Botanic Gardens of Washington and New York, 

 also from the Edinburgh and Cambridge gardens in Great Britain. 



Named after the Alamos Mountains, Sonora, Mexico, where it was 

 first collected. 



50. Sedum mellitulum Rose (fig. 70). 



5. mellitulum Rose in Contrih. U.S. Nat. Herb.. 13, 299, 1911- 

 Illustration.— Loc. cit.. pi. 57 (photo). 



A neat Httle plant, easily known by its tuft of erect stems a few inches 

 high clothed with linear leaves and terminating in a flatfish cyme of 

 white flowers. For some years confused in America with S. alamo- 

 sanum but that has shorter, more glaucous leaves and few-flowered 

 cymes with bright-red buds and pale-reddish flowers ; it flowers, more- 

 over in early spring, while 5. mellitulum blooms m autumn. 



stem ; y-g l^-s gUu-^^^ ^^f ^^ffESbra^^^^^^^^ the forks. 



Z^U. erJSslightTy shorter than the stamer^s. styles divergerxt. 

 Flowers September-October. Not hardy. 



Habitat.— Sierra Madre, Mexico. ., , v n t^ 



A pretty plant as its name implies (wc//t7w/MS=little darling), it 

 appears to prefer half shade to full sunlight, and dries up easily. 



51. Sedum Cockerellli Britton (fig. y^)- 



S Cockerellii Britton in Bulletin New York Bot. Card., 8,41. 1903- 

 '• N^ Amer. Flora," 22. 67. Cockerell in Card. Chromcle. 25 Jan. 



A small pale-green plant, recognizable among the white-flowered 

 Mexican species by its flat, spathulate pointed root-leaves, narrowly 

 lanceolate stem-leaves, linear sepals, and lanceolate petals. 



