PE ACA TT | 
BOTANY. 79 
TRIFOLIUM BARBIGERUM, (sp. nov.): nanum, molliter pubescens; caulibus e radice annua vel bienni 
adscendentibus, (1-3 poll. longis,) junioribus stipulis scariosis apice truncato setaceo-laciniatis 
imbricatum vestitis; foliolis obovatis cuneatisve obtusissimis denticulatis; involucro cyathi- 
formi laciniato aristato-dentato flores subequante ; calycis dentibus tubo fere triplo longioribus 
aristiformi-subulatis plumoso-barbatis, infimo simplici presertim supremo bi-trifidis; legumin- 
ibus dispermis. Near San Francisco, April. The Rev. A. Fitch collected this plant in the 
same place, four or five years ago. 
MELILOTUS PARVIFLORA, Desf. Fl. Atl. 2, p. 192; Torr. & Gray, Fl. 1, p. 321. Common in 
New Mexico and California, on banks of streams ; probably introduced. 
Mepicago pENTICULATA, Willd. Sp. 3, p. 1414; Torr. & Gray, Fl. 1, p. 332.  Cocomungo, 
California; March 18. Introduced. 
HosackrA BICOLOR, Dougl. et Benth. in Bot. Reg. t. 1257; Hook. Fl. Bor.-Am. 1, p. 134; 
Torr. & Gray. Fl. 1, p. 323. Hills near Punta de los Reyes; April 17 ; and wet ravines, Grass 
Valley, California; May 19. A showy perennial species. The stipules are not always “very 
obtuse," but are sometimes rather acute. 
HosACKIA STOLONIFERA, Lindl. Bot. Reg. t. 1977; Torr. € Gray, Fl. 1, p. 323. River banks, 
Mokelumne Hill, and Mammoth grove, California; May 15-17. Var. PUBESCENS. Corte Madera, 
April 16. In this variety the peduncles are sometimes naked, and sometimes (even on the same 
specimen) furnished with a sessile, unifoliolate, or pinnately 2-—7-foliolate bract. The whole 
plant is conspicuously pubescent. 
HosACKIA GRANDIFLORA, Benth. in Bot. Reg. sub. t. 1257; Torr. & Gray, Fl. 1, p. 323. Hill- 
sides, mouth of the Yuba, California; May 21. The bract is occasionally trifoliolate, and 
not unfrequently it is wanting altogether, or only rudimentary. 
HosackrA PUBERULA, Benth. Pl Hartw., p. 305; Gray, Pl. Wright. 1, p. 50. On Wil- 
liams' River of the Colorado, western Mew Mexico, February 11. 
HosackrA (EuHOSACKIA) INCANA (sp. nov.): perennis, undique et mollissime cano-villosa ; caule 
erecto simplici ; foliolis 11-13 ovatis acutiusculis; stipulis ovatis folioformibus ; pedunenlis folio 
multo brevioribus; umbellis 6—9-floris; bractea 5-foliolata; floribus pedicellatis ; calycis dentibus 
subulato-lanceolatis tubo duplo brevioribus. (Tab. IV.) Dry hills, near South Yuba, California; 
May 23. Plant 6-10 inches high, densely clothed with soft greyish-white villous pubescence. Stem 
rather stout, leafy. Leaflets nearly half an inch long, mostly opposite, varying from broadly 
to narrowly ovate. Stipules about two-thirds the size of the leaflets, and resembling them in 
form. Peduncles (floriferous) half an inch or more in length. Flowers as large as in H. 
bicolor, apparently purple, mixed with yellow; the pedicels about one-third the length of the 
calyx. Pods not seen. Allied to H. stipularis, but abundantly distinct. 
HosACKIA PARVIFLORA, Benth. in Bot. Reg. sub t. 1257 ; Torr. € Gray, Fl. 1, p. 326. Napa 
Valley, April 25. Hills near Punta de los Reyes, and Tomales bay, April 17-19. H. micro- 
phylla and H. nudiflora of Nuttall seem to be only reduced forms of this species. 
HosackrA stricosa, Nutt. in Torr. & Gray, Pl. 1, p. 326. Cocomungo, March 26. We 
think that H. rubella, Nutt., should be united to this species. 
HosACKIA SUBPINNATA, Torr. & Gray, Le Lotus subpinnatus, Lagas. Gen. and Sp. p- 33; 
Hook. & Arn. Bot. Beech., p. 11, t. 8. Corte Madera, April 10; hill-sides, Martinez, California ; 
April 23. 1 
Hosackra Pursmiana, Benth. l: c.; Torr. € Gray, l. e. Lotus sericeus, Pursh, Fl. 2, p. 489. 
Low ravines, Grass valley, May 19. The four remaining species of the section Psycopsis of 
Nuttall (in Torr. & Gray, Fl. l. c.) are probably only forms of H. Purshiana. 
HosackrA OYTISOIDES, Benth. l. c.; Torr. & Gray, l. c. Near San Francisco. Bracts mostly 
unifoliolate. 。 i 
ROBINIA Neo-Mexicana, Gray, Pl. Thurb., p. 314. Mountain arroyos, near San Antonita, 
ico; October. In fruit. 
رجہ‎ mg Nutt. Gen. 2, p. 106. Sand banks of the Canadian, near the Shawnee 
villages; August. With ripe fruit. 
