344 PROCEEDINGS OF THE AMERICAN ACADEMY 



is very rare and found only in the San Bernardino Mountains {Parish Brothers), 

 apparently with the ordinary pubescent form. In Northern California and 

 northward it may readily be confounded, when only in flower, with li. Fendleri 

 or li. pisocarpa. Specimens with a ratlier peculiar habit and wholly unarmed 

 have been collected in Siskiyou County {Primjle). Suksdorf describes it as in 

 his locality nearly thornless, sometimes ten or twelve feet high and two inches 

 thick at base. li. Califomica, Kegel, does not differ from the common pubes- 

 cent form of the original species. 



R. spilhamcea, Watson (Bot. Calif. 2. 444), may be a very extreme dwarf form 

 of the resinous variety, with straight spreading slender spines, the pedicels, 

 receptacles, and sepals densely glandular-prickly, and the leaflets mostly dis- 

 tinctly petiolulate. The fruit has not been collected. It has been found at 

 New Almaden (Torrey), near San Luis Obispo (467 Brewer), and in Trinity 

 County (Raitan). Mr. Rattan speaks of it as " very abundant all the way down 

 the Trinity Eiver from Hyenpom on the South Fork to Ilooiia Valley. On the 

 ridge between Burnt Ranch and the Forks of the Trinity it fairly covers the 

 ground under open forests of Quercus Kelloggii. There I saw no specimens ex- 

 ceeding eight inches in height. Three to four inches was the common height. 

 The largest I could find, a foot high, grew in the richest most shaded places 

 along the river." 



8. R. Fkndleri, Crepin. Stems often tall (6 or 8 feet high, or 

 less), with mostly rather slender straight or recurved spines, often 

 scattered, or wanting: stipules and rhachis as in the last ; leaflets 5 or 

 7 (very rarely 9), oblong to oblong-obovate, more or less cuneate at 

 base and often petiolulate, usually glaucous, very finely pubescent 

 beneath or glabrous or somewhat resinous, the teeth usually simple : 

 flowers small, often solitary, the short pedicels, receptacles, and sepals 

 glabrous, or the last subpubescent : fruit globose or broadly ovate, 

 with little or no neck, about four lines broad. — Bull. Soc. Bot. Belff. 

 15. 452. 



IlAn. From Western Texas and Now Mexico to the Sierra Nevada, and 

 northward to beyond the British Boundary. — W. Texas, near Fort Davis 

 (Bigdow) ; New Mexico, near Santa Fe (Fendler), on the Mimbres (Thurber), in 

 the Raton Mountains (Abert), Sandia Mountains (Bigelow), S. Magdalena Moun- 

 tains (G. R. IrtSf^), and at Mangus Springs {Rusbi/) ; Arizona, at Trumbull 

 (Palmer), and Willow Spring (Rothrock) ; Utah {Bis/top, Wurd), near Salt Lake 

 City {Engelmann, Jones) ; Nevada {Sargent), in the Goshoot Mountains (//. Engel- 

 mann), East and West Humboldt Jlountains, etc. (Watson), Truckee Valley 

 (Bailer/), Carson City (Anderson) ; Eastern California, near Mono Lake (Brewer), 

 head of Susan River (Beckwith), Sierra County (Lemmon), Modoc Range (Sar- 

 gent); Oregon, Union County (Cusick), Hood River (Henderson), and at the 

 Dalles (Engelmann, Sargent); Washington Territory, Klickitat County (Suks- 

 dorf), on the Yakima and V/cnatchee (Brand) gee), Okanagan Valley ( Watson) ; 

 Colorado, at Twin Lakes ( Wolf, Engelmann), and at Hot Sulphur Springs, 

 Middle Park (Parry, Engelmann); Wyoming, in the Wind River Mountains 

 (/•VemoHt), and on lloback W'wer (Ricliurdson) ; Montana ( //o«'(U(/), at Gallatin 

 City (Scribncr), on Rock Creek in Bitter-Uoot Valley ( Watson), and on Hudson 



