PLANTS COLLECTED BY DR. GAMBEL. 1S3 



Nearly allied to M. punctata, but with very different bractes, leaves of the same 

 form and full of resinous punctures. The flower appears to have been pale purple 

 and spotted. 



Hab. Near Santa Fe, New Mexico. 



HEDEOMA. 



H. *ciLiATA. Perennial ; minutely pubescent, branching much from the base ; leaves linear-obtuse, shortly 

 petiolate, entire ; flowers, two or three together in the axils ; calyx hirsute, with long, unequal ciliate 

 teeth ; corolla about the length of the calyx. 



About four inches high, very much branched, with at length a woody root. 

 Allied to Micromeria glabella, but with smaller and entire leaves, and with the calyx 

 of M. hirta. {Hedeoma hirta.) 



Hab. Santa Fe. New Mexico. 



SISYMBRIUM. 



S. *iiEFLEXuM. Smooth ; leaves somewhat lyrate-pinnatifid, the terminal lobe toothed, upper leaves nearly 

 entire and denticulate ; flowers small ; petals linear-spathulate, a little longer than the coloured calyx ; 

 pods subterete, very long, nearly sessile, rigidly reflected and acuminated with the style. 



A rather stout species, about two feet high, with the silique an inch and a half 

 long. It bears some affinity to Hesperis pifinatijida of Michaux, but the seeds are 

 terete and not margined, and the pods slightly compressed and not torrulose. 



Hab. Near San Pedro, Upper California. 



URTICA. 



U. *HOLosERicEA. Perennial and tall ; leaves opposite, large, on long petioles, cordate-ovate, acute, above 

 lanceolate, coarsely serrated, smooth, beneath silky villous, as well as the stems and petioles, the latter 

 also pilose ; flowers tetrandrous; in axillary, filiform, compound racemes; the upper clusters styliferous 

 only. 



A tall species, resembling U. procera but monoicous, and with the large leaves 

 almost whitely villous beneath with a soft down, amidst which, however, on the 

 stem are the usual long hispid hairs, some of the leaves are a span long without the 

 long petiole. Male calyx four-parted, the female four-parted with two of the 

 segments minute. Fruit ovate, pale brown and shining. 



Hab. Near Monterey, Upper California. 



APIUM. 



A. GRAVEOLENs. (Celery.) Marshes on the coast of Santa Barbara. (Dr. Gambel.) 

 This useful plant common to all the salt marshes of Europe, is now also found to be 

 indigenous to the west side of this continent. 



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