SAXIFRAGACE^E. 37 



the want of stipules; sometimes by the leaves being opposite; and in most by the par- 

 tial or complete union of the 2 to 5 carpels into a compound ovary. Seeds usually 

 indefinite or numerous. Petals and stamens on the calyx. Styles inclined to be distinct. 

 Only the Hydrangiece have many stamens. Key to genera and species, p. 119. 



SAXIFRIGA. 



S. Marshall!!, Greene. Perennial. Leaves radical; oblong, dentate: scape about 

 a foot high, loosely panniculate: white petals with a pair of green spots: filaments 

 club-shaped. Hoopa Val., on Trinity Riv., C. C. Marshall. Rogue Riv., Howeil. 



S. Californica, Greene, is* S. Virginiensis, Michx. 



BOYKINIA. 



Therofon elatum, Greene, is Boykinia occidentalis, T. & G. 



TELLIMA. 



T. scabrella, Greene. A foot high, bearing bulblets: calyx with rounded base: 

 petals entire, the two upper shorter and broader than the others: styles glabrous. 

 Sierra Nevada. 



MITELL.A. 



M. diversifolia, Greene (Marshall's Mitella). Leaf margins ciliolate: scape a foot 

 high: shallow calyx-lobes, whitish petals palmately trifid at the abruptly widened 

 apex: stamens 5. Trinity Mts. 



BIBES. 



Ribes tenuiflorum, Lindley, is, 'according to Prof. Greene, our species of Golden 

 Currant, not B. aureum. 



B. ambiguum, Wats. Glandular and hairy: spines short: flowers mostly solitary, 

 6 lines long or less, greenish: stamens about equaling the white petals: small anthers, 

 obtuse: fruit densely spinose. Trinity River, northward. 



B. Marshall!!, Greene. Glabrous: flowers an inch long: calyx dark purple: petals 

 2-3 lines long, salmon color. Trinity Mts. May be a variety of the last. 



B. Victoria, Greene. (Chestnut's Gooseberry). 5 feet high: spines triple: leaves 

 viscid: greenish flowers, 6 lines long: calyx-tube much exgeeding the lobes, petals 

 white, acute, and toothed at the apex: anthers sub-sagittate, mucronate: ovary glan- 

 dular, rough-hairy. Marin and Napa Cos. 



B. Calif or nicum, H. & A. Rigid, flexuose, glabrous branches: leaves small: petals 

 thick, truncate, erose-toothed at the end: stout filaments, three times the length of the 

 petals: berry prickly. 



B. subvestitum, H. & A. Taller, 5-10 feet high: leaves very viscid and heavy- 

 scented: petals truncate, entire. 



