CATALOGUE. 73 



Talinum aurantiacum, Engelm., var. angustissimum, Gray. — Similar 

 to the above, except that the leaves are linear, the articulation of the 

 peduncle often nearer the axil, sepals approaching the orange color of the 

 corolla, and the plant usually lower, averaging 8' in height. (538.) Rocky 

 ledges at Chiricahua Agency, Arizona. 



Talinum patens, "Willd.?— 1-2° high, glaucous; leaves broadly lanceo- 

 late, thin, entire; flowers purple, in bud twice longer than the obtuse 

 sepals; inflorescence loose, panicled along the slender branches; seeds not 

 mature • enough to certainly identify the specimen. (522.) Chiricahua 

 Agency, Arizona, on rocky ledges, along with T. aurantiacum var. angus- 

 tissimum. 



Calandeinia* pygm^ea, Gray (Proc. Am. Acad, viii, p. 623). (Tali- 

 num pygmceum, Gray.) — Colorado. (73.) 



Claytonia artica, Adams, var. megarhtza, Gray. — High mountains 

 of Colorado; strictly alpine. The large root penetrates a foot or more 

 among the rocks. (74.) 



Claytonia Chamissonis, Esch. & Ledeb. — Seeds evenly and beautifully 

 roughened with minute scale-like markings. I find no allusion under 

 description of this species to the markings of the seed, nor have I any ripe 

 seed in other authentically determined specimens of the species, but in all 

 the other characteristics my plant is so like the broader-leaved form, 

 No. 84, of Hall and Harbour, that I cannot doubt the specific identity of 

 the two. (219.) Willow Spring, Ariz.; altitude, 7,195 feet. Found 

 growing luxuriantly in spring water the temperature of which was 52° 

 Fahrenheit. 



Claytonia Caroliniana, Michx., var sessilifolia, Torr. (C. lanceolata, 

 Pursh.) — Nevada. 



Lewisia rediviva, Pursh. — Nevada. 



ELATINEtE. 



Elatine Americana, Arn.— Twin Lakes, San Luis Valley, and Rio 

 Grande at Loma, Colo. (775, 776.) 



* Calandkinia, H. B. K. — Differs from Talinum, Adans., chiefly in having persistent sepals and 

 estrophiolate seeds. 



