312 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM, 
SAXIFRAGA. SaAXIFRAGE. 
Stems producing perennial branches, these densely beset with small 
leaves. 
Leaves coriaceous and evergreen, entire. 
Filaments clavate; leaves spatulate, obtuse, not ciliate... 1. 
Filaments subulate; leaves lanceolate, acute, ciliate 
Leaves not coriaceous thin, 3 to 5-lobed or cleft. 
Calyx united only at base; leaves cleft .............. 3. S. cespitosa. 
Calyx united to the middle; leaves lobed.............. 4. S. adscendens. 
Stems not producing perennial leafy branches. 
Calyx campanulate; stems leafy; basal leaves crenate; cauline _ 
few, entire or 3-lobed 5. S. debilis. 
. tolmiei. 
. bronchialis. 
th |! 
Calyx rotate; leaves all or mostly basal. 
Leaves serrate or coarsely dentate. 
Petals dissimilar; leaves spatulate, serrate, short- 
petioled........ 22222222222 eee eee eee... 9. 8. bongardi. 
Petals similar; leaves cordate or reniform, coarsely 
toothed, long-petioled. 
Caudex bulbous; herbage somewhat glandular; 
leaves usually doubly dentate.................. 6. S. mertensiana. 
Caudex not bulbous; leaves glabrous, simply den- 
tate. 
Petals spatulate-obovate............22...-.. 7. S. odontophylla. 
Petals elliptic, not clawed_.............2.... 8. S. nelsoniana. 
Leaves entire or merely crenate, all basal. 
Leaves ovate or oblong, petioled, usually coarsely cre- 
nate. 
Leaves thick, subcoriaceous, red-tomentose beneath 
at least when young........-......22.-.-..1. 10. S. marshallii. 
Leaves not subcoriaceous, often thin, glabrous or 
nearly so. seeeee _— - -. 11. 8. californica. 
Leaves entire or nearly sO, oblong-spatulate to to ovate. 
Calyx lobes erect, shorter than the tube; petals 
wanting.....-... — Leese - 17. S. apetala. 
Calyx lobes spreading, about : as s long as 5 the tube; 
petals present. 
Petals not exceeding the calyx lobes. 
Petals obovate 
Petals narrowly oblong................. 13. 
Petals much longer than the calyx lobes. 
Stems 30 to 60 cm. tall; flowers 7 to 9 
mm. broad; leaves without petioles. _. 14. S. oregana. 
Stems 10 to 30 cm. high; flowers smaller; 
leaves more or less distinctly petioled. 
Flowers 6 to 8 mm. broad; leaves el- 
liptic, villous and viscid above... .. . 15. S. integrifolic. 
Flowers 3.5 to 5 mm. broad; leaves 
usually broadly ovate; petals per- 
sistent.....-2.2...2.---.--.---.-.- 16. 8. fragosa. 
. plantaginea. 
. columbiana. 
— 
bo 
RA 
1. Saxifraga tolmiei Torr. & Gr. Fl. 1: 567. 1840. 
Type Locarity: “Northwest coast.”’ Collected by Tolmie. 
Rance: Washington and Oregon in the Cascade and Olympic Mountains. 
