‘ Saxifragaceas. Saxifrage Family. 
2 . Ours all low 
_ perennial herbs with alternate, rarely opposite, often 
basal leaves, Wasidiit—stimees. Flowers in racemes, panicles or cymes, 
infrequently solitary, usually small and white. Calyx-lobes and petals 
commonly 5. Stamens 5 or 10 hypogynous or perigynous. Pistil formed of 
2-5 carpels, nearly distinct and superior or variously united and wholly 
inferior in some,, in fruit forming give or partly distinct follicles or 
capsules. Fmt ahawberod ® 
O Stamens 5, alternating with 5 fringed staminodia; 
capsule l-chambered with 3-4 parietal placentae 
opposite the stigmas j, Parnassia 
| 
O Stamens 5 or 10, staminodia none; capsule 1 or 2 
(rarely 3) chambered, either with axial placentae 
or 2}parietal placentae alternate with the stigmas 
(sometimes appearing basal) 
(3 in 
Lithophragma ) 
Q Stamens 10 
Maturing ovary and capsule quickly differentiating 
into two very unequal valves, together somewhat 
A ai soogh-avaned leaves 5-7 lobed. p. Tiarella 
w@ 4 Valves of capsule equal | 
@ Ovary 2-chambered or of two (rarely 3) 
distinct carpels, the placentae axial in 
1 athe: case; petals entire or rarely toothed. 
§ Ovary of two free carpels; leaves leathery; 
1z seeds with an appendage at each end J Leptarrhena 
8 Ovary of two carpels united at least at the 
base, free above; leaves not leathery; 
\seeds without appendages 4. Saxifraga | 
(, Ovary l-chambered, the placentae parietal ; petals palmately or 
JO pinnately cleft or divided. 
8 Leaves all basal, none borne on the 4 
12, flowering stalk 4. Mitella 
8 Leaves both basal and cauline 
iO Styles, placentae and valves 5}. pobeks 
Wits. G. Lithophragna 
/? Styles, placentae and valves 2 }qpebevies 
nee 7. Tellima 
— 
sea ag a 
