30 MINNESOTA STUDIES IN PLANT SCIENCE 



graciliusculus sparse glanduloso-pubescentis ramis paniculatis diffusis paten- 

 tibus multifloribus bracteis linearibus vel lanceolatis; pilonim cellulae in 

 seriem unam dispositae glandulis multicellularibus globosis vel oblongis 

 saepe purpureis. 



Receptacle adnate to the base of the ovary, carpels 2, sometimes 3, sur- 

 rounded above the base by a dilated gland, and with a conspicuous dorsal 

 rib ; stigmas small, oblong ; filaments clavate, narrow below ; anthers purplish ; 

 sepals oblong-ovate, reflexed, conspicuously united at the base, 2-2.5 mm. ; 

 petals ovate or elliptic, obscurely retuse, greatly contracted at the base. 

 3-3.5 mm., seeds elliptic-ovate, broadest above and tuberculate towards the 

 apex, longitudinally grooved; leaves basal, long petroled, ovate or oblong- 

 ovate, subcordate, margins sinuate or crenate-dentate ; scape tall, erect, some- 

 what slender, sparsely glandular-pubescent, paniculately branched, the 

 branches diffuse and spreading and many-flowered; bracts linear or lanceo- 

 late; hairs uniseriate, glands globose or oblong, multicellular, often purple. 



Scapes singie or several ; perennial from a short, stout, simple, or 

 branched caudex. 



Prominent characteristics: strongly contracted receptacle, inflated folli- 

 cles, greatly elongated petioles, subcordate leaves, costate carpels, and large 

 globose glands of hairs. It is also a tall plant with an open diffuse inflo- 

 rescence of rather few branches (Plate VII). 



Distribution. — Known only from the type locality. 



Specimens examined : 



Oregon: on wet banks, Woodville, May, 1889, Thomas Howell (UMH, MBG 

 83917). Type! 



Saxifraga rufidula (Small) n. comb. 



Micranthes rufidula Small, N. Am. FL, 22:2:140. 1905. 



A .small species very similar to S. occidentalis (q.v.). The shallow 

 receptacle gives the appearance of a hypogynous condition. Follicles rela- 

 tively large (Plate VI). 



Distribution. — Appears to be limited to Vancouver Island, adjacent British Colum- 

 bia, and the Olympic mountain region of Washington. 



Specimens examined : 



British Columbia: Mt. Finlayson, Vancouver Island, May 17, 1887 (type col- 

 lection), /. Macoun; Mt. Arrowsmith, July 18, 1887, /. Macotin; Mt. Arrowsmith, 

 Vancouver Island, alt. 3,000-5,000 ft., June 29, 1906. C. O. Rosendahl, No. 1631 ; slopes 

 of Mt. Arrowsmith, Vancouver Island, alt. 3,000-5,000 ft., June 28, 1907, C. O. Rosen- 

 dahl, No. 2030. 



Washington: on wet cliffs, Olympic Mountains, alt. 3,000-5,000 ft., August, 1895, 

 C. V. Piper, No. 2212; Mt. Angeles, on the highest elevations, 1909, Webster; Mt. 

 Baldy, alt. 4,000 ft., July 7, 1902, H. S. Conrad. No. 279. 



