380 SAXIFRAGACEAE 



thium 



Petals 3-fid to the middle; hjrpanthium with the sepals 4-5 mm. long. 



3. O. stauropetala. 



Petals entire or 3-fld only at the apex; hjDanthiura with the sepals 1.5-3 mm. lon^;. 

 H>panthiura with sepals 2-3 mm. long; leaf -blades indistinctly lobed and with 



shallow crenulations ; petals often entire. 4. O. stenopetala. 



HM)anthium with the sepals 1.5-2 mm. long; leaf-blades distinctly lobed and 

 deeply crenate; petals 3-cleft. 5. O. Parryi. 



1. O, trifida (Graham) Rydb. Flowering branches 2-3 dm. high, naked, 

 glandular-puberulent; leaf-blades reniform, 2-4 cm. broad, 7-9-lobed, with 

 broad shallow rounded lobes and crenate, sparingly hairy on both sides; raceme 

 short, 2-6 cm. long; hypanthium with the sepals 3 mm. long; sepals green, tri- 

 angular-ovate. Mitella trifida Graham. Wet woods: Alta. — B.C. Mont, 

 My-Au. 



2. O. violacea Rydb. Flowering branches 2-3 dm. high, naked, glandular- 

 puberulent; leaf-blades broadly cordate in outline, slightly 5-7-lobed with 



"J, finely crenate lobes; racemes short, with almost sessile flow^ers; hypan- 

 with the sepals 3 mm. long and 2 mm. wide; sepals ovate, obtuse. M. 

 tnolacea Rydb. Mossy banks in woods: Mont. Submont Je-Jl. 



3. O. stauropetala (Piper) Rydb. Flowering branches naked, 3-5 dm. 



^^ 'j^j^^^ ^^^^^"P^*^™^™* throughout, or slightly hirsute below; leaf-blades 

 rounded-reniform, indistinctly 5-9-lobed, w4th round crenate lobes, sparing hir- 

 sute on both sides; racemes rather elongate; pedicels about 1 mm. long; sepals 

 oblong-ovate; petals fully twice as long as the sepals. M. stmiropelala Piper. 

 ^pnngy places in woods: Mont.— Colo.— Ore.— Wash. MonL My-JL 



4. 0. stenopetala (Piper) Rydb. Flowering branches leafless, 3-5 dm. 

 tugh, puberulent; leaf-blades rounded-reniform, 2-6 cm. wide, ciliate on the 

 margm, indistmctly rounddobed and crenate; raceme secund, often 1 dm. long; 

 tlowers almost sessile; sepals whitish, oblong, obtuse; petals about half longer 

 than the sepals. Af, iri^Ja S.Wats. M , stenopetala Viper, Damp places: Utah 



— Colo.— \\ yo. MonL Je-JL ■ 



cruS. ?' ■^*K^i ^^'P^^' ^^'*- Flowering branches leafless, 1.5-3 dm. high, 

 glandular-puberulent above, shghtly hairy below; leaf-blades 2-3 cm. wide, 



+Kon ; '*K^'"''''S^^:,-^''''^; °° *^« "^eins and the margin, more distinctly lobed 

 tban m the precedmg, deeply crenate; racemes 2-7 cm. long, often secund; 



ln2!^%'if''^ ^^.^^^^'^^' f ^P^l^ ^*^^*'^h' rounded-oblong, obtuse; petals about half 

 te-&'^MSf ^My^Au!''"''^^'"''^ '''''''' P^P'^^- Mountains: Wyo.- 



8. CONIMITgLLA Rydb. 



hri^nrh^'^^^'^ft^'^^ ^^''^'^ cespitose rootstocks and scapiform lateral flowering 

 K^ H,^ Tk^"''''''^, racemose. Leaves basal, long-petioled, with reniform 

 of th^ ovSl^^^i T ^^^"k! ^^^' ^^*inate, regular, adnate to the larger part 

 StlmenJT^hu^Ft ^' ""^^T^' ^'^^*- ^^^^'^ 5, long-clawed, spatulate, entire. 

 2 Setal nWtf ' ""T '^^'^- Gynoecium mostly inferior, Sne-celled, with 

 mScatc ^ ^**^ """"^ numerous ovules; stigmas subsessile, capitate. Seeds 



I' iSl^!?i".(^.C. Eaton) Rydb. 



,4-6 



3^ cm. "wide. 



indistinotlv rm.rT^ w,^ 'j ^"'^^'^^ remiorm, thick, shmmg, 3-^ cm. wme, 

 SrSrLX shirt t m"^ 'T''^^ hispid-ciliate on the margin, often tinged 

 ^10 ^' f?!fJ'T?-^^^-l,0^'«.-Iong. 6-12-flowered:hvDanth 



nudicaulis 



owly spatulate. Heuchera 'Willi'afnsii D. C. Eaton. 

 Greene Hi"n^;^{p« Tr^'^r^""' Y'-'-^^^^Ventandra Canbv. Lilhophragma Williamsn 

 yreene. HilLides and open places : Mont.-Ida.-WVo. SuLonL-^MonL Je- 



HEUCHERAL. Altim 



either scapiform or lelfv r;..! i ''°'' ?-*^,^^^ flowering 1 



panthium cylindric to saucer-shaped, 



