(37x ) 
7. GROSSULARIA SPECIOSA (Pursh) Coville & Britton, N. Am. 
Bly 225, 252: |) 1908. 
Ribes speciosum Pursh, Fl. Am. Sept. 731. 1814. 
Robsonia speciosa Spach, Hist. Veg. 6: 181. 1838. 
Type locality: “On the north-west coast.” First collected by 
Menzies, probably at Monterey. 
Distribution: Foothills of the Coast Ranges from Monterey 
County south to San Diego. In southern California this species 
is chiefly confined to the Coastal Sub-district. Upper Sonoran. 
Specimens examined: Mission Canyon, Santa Barbara, Abrams, 
March 6, 1909; Sepulveda Canyon, Santa Monica Mountains, 
Abrams 2563, 3118; Sherman, Braunton 362; Eagle Rock Canyon, 
near Pasadena, Braunton 180; Twin Oaks, Bailey 306; Oceanside, 
Parish 4456; San Diego, Dunn, March 21, 1891. 
PLATANACEAE. PLaAne-tTREE Famity. 
1. PLATANUS. Sycamore or PLANE-TREE. 
1. PLATANUS RACEMOSA Nutt. N. Am. Sylva 1: 47. 1842. 
Platanus californica Benth. Bot. Sulph. 54. 1844. 
Type locality: “A native of Upper California, in the vicinity 
of Sta. Barbara.” 
Distribution: From the lower Sacramento Valley and the inner 
Coast Ranges southward to northern Lower California. In south- 
ern California this species is common along streams and on canyon 
floors in the mountains to altitudes of 600 meters, or occasionally, 
on the desert slopes, extending to 1200 meters. Upper Sonoran. 
Specimens examined: Santa Barbara, Elmer 3831; Sulphur 
Mountain Spring, near Santa Paula, Abrams &9 McGregor 61; Ten 
Sycamore Flat, Sespe Creek, Abrams &9 McGregor 165; Rock 
Creek, desert slopes of the San Gabriel Mountains, Abrams & 
McGregor 529; Santa Monica Mountains, Abrams 1253; between 
Los Angeles and Pasadena, Abrams, March, 1899; San Gabriel, 
Cox, March 28, 1908; Alpine, Mearns 4035; Sweetwater Valley, 
Susan G. Stokes, July, 1895. 
CROSSOSOMATACEAE. Crossoma Famity. 
1. CROSSOSOMA. 
Petals broadly obovate or orbicular-obovate; follicles many-seeded. 
1. C. californicum. 
Petals spatulate to oblong; follicles few-seeded. 2. C. Bigelovit. 
