Slandley — Tlie American Species of Fagonia. 249 



The specimen from Utah differs from the others in having very small 

 stipules and Leaflets and remarkably long petioles. Probably it is a 

 different species for it is from a region well removed from the usual range 

 of Fagonia californica. 



As originally published the species consisted of two forms, a hindsiana, 

 and |8 barclayana. The first, of course, is to be taken as the type. The 

 other is /•'. barclayana( Benth. ) Rydb. The form hindsiana was described 

 as being "glabra, stipulis brevissimis." The second form was described 

 as " puberula, stipulis setaceo-spinescentibus petiolo paullo brevioribus." 

 Personally the writer is inclined to believe that these two are. the same 

 species. This opinion, however, may be altogether wrong. A few of the 

 plants here listed under the species are nearly perfectly glabrous while 

 others are conspicuously scaberulous. Judging from Bentham's meager 

 descriptions alone it seems likely that these are the two forms he had 

 before him. 



10. Fagonia chilensis Hook. l*c Arn. in Hook. Bot. Misc. 3 : 165. 1833. 



Type locality, " Coquimbo," Chile. Type collected by Cuming, No. 

 907. 



Rather slender, 25 cm. high or less, with glabrous, angled branches; 

 petioles equaling or shorter than the leaflets, glabrous; stipules stout, 

 spreading or slightly refiexed, :'> to 4 mm. long, spinescent; leaflets 

 obovate to linear-lanceolate, glabrous, acute or acuminate, spinescent 

 tipped, 2 to S mm. long, the lateral ones oblique; pedicels 3 to 4 mm. 

 long, refiexed in age, shorter than the fruit: sepals lanceolate or oblong- 

 lanceolate, 3 to 4 mm. long, acute; petals rose purple, 7 or S mm. long^ 

 fruit about 5 mm. high, scaberulous, often nearly glabrous in age, with a 

 beak 2 to .". mm. long. 



Specimens examined: Chile: Atacama, 1890, Morong 1180; prov. 

 Coquimbo, R. A. Philippi. 



11. Fagonia laevis Standley, sp. now 



Low, densely branched perennial 20 to 40 cm. high; stems rather 

 slender, green, glabrous, angled and striate; petioles 4 to 10 mm. long, 

 glabrous; stipules slender, 1.5 to 2.5 mm. long, spinescent, spreading; 

 leaflets 3, linear-lanceolate, 2 to s mm. long, glabrous, petidlulate, spines- 

 cent tipped, the lateral ones somewhat oblique; pedicels glabrous, shorter 

 than the fruit, derlexed in age; sepals oblong-lanceolate, 2 to 2.5mm. 

 long, acute, spinescent tipped; petals rose purple, about 5 or mm. long, 

 narrow, long-clawed; ovaries and fruit glabrous, the latter :'>.."> mm. high, 

 the slender beak 1.5 to 2 mm. long. 



Type in the U. S. National Herbarium, No. 855,582, collected near 

 Yuma, Arizona, April 25, 1906, by Marcus E. Jones. 



Additional specimens examined: 



California: 10 miles west of Coachella, Riverside County, altitude 150 

 meters, April, 1905, H. M. Hall 5806. 



Lower California : Tia Juana, June 30, 1884, Orcutt. 



