1770, they ascended a stream whose source was a larg-e'spring , covered with water- 

 cresses.^" Mission San Gabriel was founded in September, 1771, and when Fr. Font 

 visited it, January 6, 1770, only seven years after the first arrival at San Diego, 

 he found watercresses growing in a stream.-" This was in Costanso's Valle de 

 San Miguel. In Oregon, also, watercresses may have anticipated the white set- 

 tlement, for they are reported as found by the Lewis and Clark Expedition in the 

 Multnomah valley in April, 1806."'- Piper is of opinion that the plant seen was 

 some undesignated species of Cardamine, but there are only two Cardainines which 

 grow in the habitat indicated, neither of which would be likely to be mistaken 

 for so familiar an herb as the watercress, which probably was the plant really seen 

 by the explorers. 



CAPPARIDACEAE 



Cleome lutea Hook. 



A casual introduction, in impure seed, in an alfalfa field at Downey, Davidson in 

 1894. Xative of western America. 

 Cleome serrulata Pursh. Stinking Clover. 



A single waif in the railway yards at Barstow, in the Mojave Desert, in 1914. 

 Xative of western America. 



FUMARIACEAE 

 Fumaria officinalis L. Fumatory. 



Well established in some orchards at Ontario and Upland, Johnston in 1917. 

 The only other collection seen from the state is; San Luis Obispo, "well estab- 

 lished in an old orchard," Condit in 1909. Native of Europe. 



RESEDACEAE 

 Reseda alba L. 



An occasional roadside waif. Pasadena, Davidson in 1893. Ojai, Hubby in 1902. 

 San Bernardino, Parish in 1904. Native of Europe. 

 Reseda lutea L. Yellow Mignonette. 



"An occasional escape from gardens" ace. to Abrams' Flora of Los Angeles. 

 Native of Europe. 

 Reseda odorata L. Sweet Mignonette. 



Cultivated and occasionally escaping. Native of Europe. 



LEGUMINOSAE 

 Hoffmanseggia drepanocarpa Gray. 



Locally adventive in Los Angeles County. Alliambra, in an alfalfa field, David- 

 son in 1896, and abundant in fields at Coyote Pass, in 1918. Near Los Angeles, 

 T. L. Minthorn in 1909. Native in the Colorado Desert and eastward to New 

 Mexico. 

 Gladitschia triacantha L. Honey Locust. 



Casual on the San Gabriel river, Johnston in 1918. Native of the middle west 

 ern states. 

 Ulex europeus L. Furze. 



An escape along the bluff at Playa del Rey, Davidson in 1911, and Johnston in 

 1917. At San Francisco, "covering many acres," K. Brandegee in 1892. Native of 

 Europe. 

 Cytisus canariensis L. Broom. 



An infrequent escape from cultivation. Arroyo Seco, Pasadena, Davidson in 

 1896. Blanchard's Park, Claremont, Johnston in 1918. Native of the Canary Islands. 

 Alhagi camelorum L. Camel's Thorn. 



Colorado desert; Mecca, Brandegee in 1915. Said to be troublesome at Brawley, 

 1920. Native of Asia. 

 Medicago hispida Gaertn. Bur-clover. 



Probably introduced in the mission period; abundantly naturalized on wild 

 lands and a common weed in cultivated grounds. A valuable forage plant, not 

 much relished by stock when green, bvit readily eaten and very nutritious when 

 naturally cured on the ground, in which state it was often, in early days, raked up 

 and stacked as hay. Even after animals have consumed the dried stems and leaves 

 they do well on the abundant "burs," which they lick up from the aopareritly bare 

 ground. It was reported as "abundant throughout California" in 1859."*" Native of 

 the Mediterranean region. 

 Medicago hispida Gaertn. var. apiculata L^rban. 



East Los Angeles, Davidson in 1903. Pasadena. Grant in 1905. Claremont, 

 Johnston in 1918. Infrequent throughout the state. Native of Europe. 



■"•"LTn arroio cuio nacimiento era un ojo muy grande cubierto de berros." Cos- 

 tanso. Op. cit. 2:314. 



■•^"Abundance of watercresses, of which I ate enough." Font's Diary, quoted 

 in Garces' Diarv and Itenerary, Cowes' Transl. 2:261. 



■•-"Among the plants in this valley in which we are encamped, I observed 



the watercress." Clark's Tourn. in Lewis & Clark's Original Journals. 



Th wait's Ed. 4, pt. 2:274. 1905. Footnote by C. V. Piper. "Along the river bottoms 



grow luxuriantly the watercress . . ." Lewis & Clark's Exped., Chicago Ed. 



2:238. 1903. 



"Torrey, J. Bot. Mex. Bound. Surv., 53. 1859. 



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