386 SAXIFRAGACEAE 



3. S. cernua L. Stems 8-19 cm. tall, somewhat glandular-pubescent ;■ leaf- 

 blades reniform m outlme, 9-23 mm. wide, prominently 5-7-lobed, the lobes 

 linear to triangular-lanceolate; upper stem-leaves with 3-o-lobed blades; hypan- 

 thmm 6.5-5 mm. long at maturity; sepals oblong to oblong-lanceolate, 3-4 5 

 mm long; petals cuncate, 6-8 mm. long. Wet rocks: Greenl.— Lab.— X M — 

 Ltah— Alaska; Eurasia. Alp.—Subalp. Je-Jl. 



1 f*Ki^^ simulata Small Stems 9-22 cm. tall, sparingly glandular-pubescent; 

 loaf-blades reniform or orbicular-reniform in outhne, 8-21 mm. wide, 5-7-lobed 

 the lobes much broader than long; upper stem-leaves with 3-5-lobed blades- 

 sepals "Wong-ovate, 3-3.5 mm. long; petals fiddle-shaped, 6-7 mm. long. Wet 

 rocks: Black HUls, S.D.—C^olo. Mo7U.~Alp. Jl. ^ 



17. MUSCARIA Haw. Saxifrage. 



In^lvXT^fl "•'^"^^f ^ft °^^tted herbs, with copiously leafy caudices and spar- 

 mgly leafy flower-stalks Leaves alternate; blades 3-lobed, or rarely 5-7-lobed, 

 narrowed at the base. Flowers solitary- or few in terminal cymes. Hj^antS 



?erecf Cnrn^^T!^^^' ^T^" S^",*^^ '^l^-^' ^* '^^^t ^t maturit,^ Sepals 

 ?h fi^LpS/i r'lf^' n^"^^"- u^'*^^' ^' '•elatively broad, clawless. Stamens 

 10, filaments subulate Ovary about one-half inferior, the carpels united to 

 above the middle. Folhcles erect, the tips sometimes slightly spreading. 



Leaves of the caudex with entire or sliehtlv 3-toothpH hia/iaa i ^ r ^ j 



2. M. micropetala. 



— mni. ^. 



Petals over 2 mm. long. 



Petals 2.5-3.5 mm. lone. o nr ^t- . , 



Petals 4.5-7 mm. long ^- ^^- ^^^^caiu/a. 



^^'^toinflTth^^^^^ ^"^ triangular-lanceolate; hypanthium turbinate 



Senals hrnnHlv ftT-aV« +^ i,-,ip ,.,%.j^.,i__. ,_ ^. . 4. M. monticola. 



panthium Camnanulate durine' an- 



thesis. 



5. AI. caespitosa. 



pubc^c^l^tafwfde?^ ^-^m;^''!^- ^^^^t^2.5^1 1 cm. tall, somewhat glandular- 

 tCse on the flnwir .f.i?.:^ mm long, mamly cuneate to spatulate. 3-toothed, or 

 inose on tbe Ho^^er stalks sometmies entire; sepa s ovate or oblone-ovate 1 ^5-2 "> 



pube;c^'t-?eav?f coSno^ir"- ^i''^!]*' "^ ^°^- *^"' ^^^^^^ copiously glandular- 

 puDescent leaves compactly crowded on the caudices, 5-9 mm lone 3-Iobed at 



It '"or'staves- hvnanth-^'^'^T^rf ' ^^T^ ^'^'^^ 1 3 Twere J,' each bear- 

 cat; Tbo\^2'm^'l^r.'^l^i::^=tl",*i .-.-,■ i-g.?t -^'^i -pals broadly 



^taiat edde. High mountains: Wyo.-Utah. '^uMp. JlTu. *"" 



wf cJowd''ed\n™th^^ .S"'' ^Al '™- *f"' ^P^^^^b' gland alar-pubes- 

 ETolate to nhfnn^.?^^^^^ ^^^ mm. long, 3-lobed at the apex, the 



Jl-Au. 



Utah— B.C. ^Zp.— A/onL 



linear to oblonK-ovate. ac,Se : flnlii^.S; fe?:'<*"?'i'' the apex, the lobes 



■panthium 3.5-4 



petals obovate ^haxVf4Zk\^ \ # ai maturity; sepals 2-2.5 mm. long; 



Alta. Suhalp. Jl-Au. 



lobes lanceolate or hnearffloieri Jkf.tfSi"°£i-'*S t' '¥_ 'PS". ""? 



h^-pantliium 3.5-4.5 mm 



5-7 



:> ^ o.*j mm. luug, petals 



Saxifraga caespitosa L. 



