444 ADDITIONS AND CORRECTIONS TO VOL. I. 



Page 174. 9. CERCOCARPUS. 



•2. C. parvifolius, Nntt. r.utto Cuunty, Mrs. Ausfiii. 



Page 178. 14. POTENTILLA. 



3. P. Breweri, Watson. I'eaks of Webber, Sierra County (Lenimon) ; nearly 

 glabrous, willi dilated stipules and large calycine bracts nearly equalling tlie petals. 



7. P. Wheeleri, Watson. — Rothrock, Bot. Wheeler's Expl. 360, t. 3, E. San 

 Bernardino iMouutains, Parry. 



8. P. Grayi, Watson. — /*. Clarklana, Kellogg, Proc. Calif. Acad. vii. 94. 

 Evidently a ri;duced form. 



12. P. palustris, Scop. Butto County {Mrs. J. B id well) ; Plumas County, 

 Mrs. Austin. " Stems 5 or G feet long, Hoating." 



Page 181. 16. HORKELIA. 



4. H. congesta, Ilook. Plains of Shasta Piver, abundant. Rev. E. L. Greene. 

 Leaflets cuneate-ol)ovate in outline, deeply cleft into 3 to 5 linear lobes. 



5. H. tenuiloba, (»ray. Mohave River, E. Palmer. 



7. H. purpurascens, Watson. — Rothrock, Hot. Wheeler's Expl. 360, t. 3, A. 



Page 18-2. 17. IVESIA. 



Stamens 5 to 20. 



2. I. unguiculata, C.ray. Bear Valley, Mohave slope of the San Bernardino 

 Mountains, Parnj it Lemmoti, n. 104. Hairs at the base more spreading: petals 

 with a spatulatc Vilade. 



Page 185. 19. ALCHEMILLA. 



1. A. arvensis, Scop. Flowers fascicled in the sheaths opposite to the i)etioles. 

 — HeterocodoH inlnimum, Kellogg, Proc. Calif. Acad. vii. 111. 



Page 187. 23. ROSA. 



2". R. spithamea. A span high or less ; stem glabrous ; spines usually one or 

 two ])airs at the base of the upper leaves, slender, nearly straight : leaves few ; stip- 

 ules very narrow, acuminate, glandular-ciliate ; leatlets 3 to 7, thin, narrowly ellip- 

 tic to obovate. obtuse or acutish, serrate and glandular-serrulate, an inch long or 

 less, the short petiolule and rhachis glandular-pubescent and the latter sparingly 

 spinulose : flowers corymbose (4 to 6), on somewhat glandular pedicels, 1 to 1^- 

 inches broad ; calyx-tube globose-oblong, densely glandular-hirsute. 



On the Trinity River, very abuiulant in open woods, " never more than a foot higli," T. Rattan, 

 July, 1878. Allied to R. parvi/olia, Ehrh., of tiie Atlantic .States ; dillVring esiiecially in the 

 thinner spinulose-serrulate leaflets. 



3». R. Nutkana, Presl. The species referred to as A', hlanda, Ait. (I). 

 Page 188. 24. HETEROMELES. 



1. H. arbutifolia, Roem. P.utte County, Mrs. Austin. 

 Page 190. 27». PERAPHYLLUM, Nutt. ' 



Flowers solitary or in sessile 2-3-Howered corymbs; petals orbicular, spreading: 

 ovary u.sually 2- (incompletely 4-) celled ; styles 2. Otherwise as Aynelanchier. 



