144 



SAXIFRAGACEAE 



2. W. utahensis Wats. Yerra Desertio. (Fig. 157.) Stems erect, much- 

 branched, iDrming a dense bush 4 to 6 inches high, the branches ending in small 

 dense compound cymes; lierbage hirsutulose, the ohl bark whitish; leaf-blades 



ovate, 3-nerved, 21/2 to 3 lines long, on short 

 (1/4 line) petioles; flowers I14 to 2 lines long; 

 petals oblong or obovate, shortly clawed; sta- 

 mens 10; styles 2 or 3; capsule oblong. 



Rocky canons, 5000 to 8000 feet: eastern 

 Mohave Desert. East to Utah and Arizona. Aug, 

 Loc. — Clark Mt., Edmund Jaeger; the only known 

 locality in California. 



Eefs. — Whipplka utahensis Wats. Am. Nat. 7:300 

 (1873), type loc. Kanab, Utah, E. P. Thompson. Fen- 

 dlerella utahensis Hel. Bull. Torr. Club 25:626 (1898). 



19. RIBES L. Gooseberry. Currant 



Shrubs, either unarmed or prickly. Leaves 

 alternate, palmately lobed, the stipules adnate 

 or none. Flowers in racemes or solitary, the pedi- 

 cels with bractlets. Calyx-lobes, petals and sta- 

 mens 5 in all ours except R. speciosum. Calyx- 

 tube adnate to the 1-celled ovary and more or 

 less produced beyond it. Petals inserted on the 

 throat of the calyx, the stamens alternating with 

 them. Placentae 2, parietal. Style cleft at the 

 summit or halfway, sometimes quite to the base, 

 rarely nearly entire; stigmas terminal. Fruit 

 a berry. — Species about 130, North and South 

 America, Europe, Asia and Mt. Atlas in north 

 Africa. (Ancient Arabic name. ) 

 Bibliog. — Douglas, David, An account of some new and little-known species of the genus 

 Eibes (Trans. Hort. Soc Lond. 7:508-518, pi. 13, — 1830). Gray, Asa, Our wild gooseberries 

 (Am. Nat. 10 :270-275, — 1876). Coville, F. V., Eibes aureum and Eibes lentum (Proc. Biol. Soc. 

 Wash. 15:23-29, — 1902). Eastwood, A., Some new species of Pacific Coast Eibes (Proc. Cal. 

 Acad. ser. 3, Bot. 2:241-254, pis. 23-24,-1902). Heller, A. A., The genus Eibes in California 

 (Muhl. 1:63-104, — 1904; 1:133-135,-1906). Janczewski, Edouard de, Monographic des gro- 

 seilliers, Eibes L. (Mem. Soc. Geneve 35:199-516, figs. 1-202,-1907). Church, A. H., Eibes 

 sanguineum (in his Types of Floral Mechanism 1:151-167, — 1908). Coville, F. V., & Britton, 

 N. L., Grossulariaceae (N. Am, Fl. 22:193-225,-1908). Jepson, W. L., Studies on Eibes made 

 at Kew (1-41, ms. 1926, 1930). 



Geog. note. — In the matter of species differentiation Eibes is much more strongly developed 

 in the Coast Eanges than in the Sierra Nevada. In the latter region the two most abundant 

 species prevailing over a wide area are Eibes roezlii Eegel, in the Transition zone, and Eibes 

 cereimi Dougl., chiefly in the Canadian and Hudsonian zones. In the Pinus ponderosa belt of the 

 Sierra Nevada Eibes roezlii is very common, and not markedly variable, nor is Eibes cereum espe- 

 cially variable although wide-spread within the Abies magnifica and Pinus albicaulis belts. Nine 

 other species and one variety occur on the west slope of the Sierra Nevada but there are no truly 

 localized species. In contrast with the somewhat continental climate of the Sierra Nevada, we 

 have in the Coast Eanges a large number of minor climatic areas with a corresponding differen- 

 tiation in species and forms, namely seventeen species and fifteen varieties. Of these certain 

 species and certain varieties are highly localized, such as Eibes victoris Greene and its variety 

 greeneianum Jepson, E. menziesii Pursh with seven localized varieties, E. californicum H. & A., 

 E. sericeum Eastw. and E. marshallii Greene. Eegarding the endemic variants of E. menziesii, 

 see the note below under species number 19. 



Tig. 157. Whipplea utahensis 

 Wats, a, habit, X ^/^ ; &, long. sect, of 

 fl., X 3; c, fr., X 3. 



A. Stems unarmed; berry spineless; peduncles bearing a several to many- 

 flowered raceme. — Subgenus Eibesia (Currants). 



Flowers yellow ; leaves convolute in the bud 



Flowers red, white, or greenish ; leaves plaited in the bud. 

 Calyx-tube cylindric or campanulate. 



.1. E. aureum. 



