548 SYNOPSIS OF THE FLORA OF THE 



coten ; also opposite Michipicoten Island, Lake Superior (Macoun). Nortt 

 shore of Lake Superior (Prof. Ellis). 



S. stellaris, L. 



Indigenous. Leaves rosulate, or a little scattered, oboTate-cuneiform, almost 

 sessile, dentate-serrate at the apex ; scape corymbose at the summit, calyx 

 free, reflexed ; petals spreading, lanceolate, aU attenuate into a claw. — Pursh. 

 Fl. 1 p. 310. Hook. Fl. Bor.-Am. 1 p. 250. Canada (Pursh.) Labrador and 

 Greenland (Torr. & Gray). 



S. nivalis, L. 



Indigenous. Perennial ; leaves all radical, obovate or spatulate, attenuate 

 into a petiole, unequally crenate-dentate ; scape capitately or subcorymbosely 

 several or many flowered, the haK-adherent calyx erect, shorter than the 

 oblong obtuse subunguiculate white petals ; capsules purple, divergent.— ^S*. 

 Watson in King's Explorations on the Jfith parallel. Canada (Pursh). Labrador, 

 Melville Island, Arctic America and Greenland (Torrey & Gray). 



S. rivularis, L. 



Indigenous. The root usually granulate ; plant glabrous or pubescent, 

 stems weak, ascending 3-5-flowered ; radical leaves somewhat reniform, 

 crenately lobed, with the petioles dilated at the base ; the cauline ones lanceo- 

 late, nearly entire ; lobes of the calyx ovate, broad, as long as the tube or at 

 length shorter; petals ovate, scarcely longer than the calyx; stigmas depressed- 

 globose ; capsule thick, much exceeding the calyx, crowned with the very short 

 divergent styles ; seeds minutely longitudinally rugose. Labrador, White 

 Mountains and Rocky Mountains of Colorado. From Greenland to Behring 

 Strait (Torrey & Gray). Cariboo Mountains, Vancouver Island (Macoun). 



S. Yirginiensis, Michx. 



Indigenous. Exposed rocks. Cape Tourmente, Quebec (Brunet). Montreal, 

 Kingston, Queenstown, Niagara Falls (Maclagan). River du Loup (Dr. Thomas). 

 Common near London (Saunders). Top of the Mountain, near Hamilton (Logic). 

 Brockville and Prescott, abundant (Billings). Rivers Moira and Trent, and 

 the Rice Lake Plains ; Pie and Michipicoten Islands, Lake Superior ; New 

 Portage, Dawson Route (Macoun). North-east coast of Lake Huron (Prof. 

 Bell). Saskatchewan Plains (Bourgeau). Yale, British Columbia (Macoun). 



S. Pennsylvanica, L. 



Indigenous. Bogs. Canada and the Northern States (Torrey & Gray). 



S. Sibirica, L. 



Indigenous. Stem filiform, ascending, weak ; radical leaves reniform, palm- 

 ately 7-lobed, petiolate, a little hairy, the lobes ovate ; those of the stem 

 sessile ; peduncles elongated, naked ; segments of the calyx linear-ovate, 

 striate, glabrous ; petals cuneiform obovate ; styles shorter than the ovary. — 

 Linn. Spec. (Ed. 2), p. 577. Sternh. reo. Saxifr. t. 25. Hooh. <& Arn. Bot. 

 Beechey, p. 124- Labrador and Newfoundland (Pursh.) 



Heuchera, L. Alum-root. 



H. villosa, Michx. 



Indigenous. Rocks. Upper Canada (Douglas). Canada (Goldie). We sus- 

 pect that this plant has been confounded with the Tiarella cordifolia. 



