JOHNSON: A REVISION OF THE SECTION BORAPHILA 43 



Geo. Hansen, No. 1533 (MBG 84283) ; woods near Cazadero, Sonoma County, April 

 24, A. A. Heller (MBG 84279) ; 1896, Mrs. R. M. Austin, No. 859 (MBG 84281) ; 

 Alma, Santa Clara County, common about moist banks and thickets, March 23, 1902, 

 C. F. Baker, No. 370 (MBG 84275) ; Sonoma Creek, eastern base of Mt. Hood, 

 Sonoma County, March 12, 1892, Heller and Brown, No, 5040 (MBG 84276) ; foot- 

 hills west of Los Gatos, Santa Clara County, April 6, 1904, A. A. Heller (MBG 

 84280) ; Santa Rosa, Sonoma County, March, 1880 ; near Mariposa, Mariposa County, 

 March and April, 1882; Glacier Point, Mariposa County, July 1, 1885; Mariposa, 

 Mariposa County, May, 1886; Elk Grove, Sacramento County, March 31, 1894; south 

 of Farrington, Stanislaus County, March 30, 1894; north of Folsom^ Placer County, 

 April 5, 1894, Stockton Creek, Mariposa County, April 20, 1889, Santa Rosa, Sonoma 

 County, March 20, 1880; ex herbarium /. W. Congdon. 



Saxifraga crassicarpa sp. no v. 



Saxifraga pennsylvanica L., of authors in general. 



Receptaculum ovarii parti inf eriori adnatum ; f olliculi crassi subsphaerici 

 stylis crassis valde divergentibus ; stigmatibus crassis discoideis; filamenta 

 subulata, angustata, 2.5 mm. longa ; sepala cuneata, acuta, base coalitiuscula 

 reflexa ; petala 3 mm. longitudine angustatissime lanceolata, acuminata 1-ner- 

 via ; semina ovalia conspicue. tuberculata. 



Receptacle shallow; follicles thick, stout, subspherical, beaks stout, 

 strongly divergent; stigmas broad, thick, flattened; filaments 2.5 mm. long, 

 subulate, narrow ; sepals cuneate, acute, somewhat united at the base, reflexed 

 about 2 mm. long lateral nerves, 2 short; petals very narrowly lanceolate, 

 acuminate, 1-nerved, about 3 mm. long; leaves 6-19 cm., uniformly elliptic- 

 lanceolate, purplish towards the base, thick, leathery, sparsely pubescent 

 on both sides, minutely and rather distantly and evenly denticulate, obtuse, 

 ciliolate, contracted into a short membranous margined petiole-like base; 

 scapes stout, about 90 cm. high, glandular-pubescent, more densely so above, 

 branching from above the middle ; inflorescence paniculate-cymose, branches 

 elongate, slender, ascending, bearing the few-flowered cymules towards the 

 ends ; perennial from a stout, woody caudex. 



The follicles of this plant are very different from the common Saxifraga 

 pennsylvanica; they are very stout, globose, and thick-beaked. The seeds 

 are relatively large and conspicuously tuberculate. The few-flowered coarse 

 inflorescence is also characteristic (Plate XII"). 



Distribution. — As far as known occasional from northeastern Minnesota to north 

 central Illinois. 



Specimens examined : 



Minnesota: St. Louis River, July 23, 1886, Arthur, Bailey, and Holway, No. 

 B329 (UMH). 



Wisconsin: swamps in Mirror Lake, Sauk County, July 14, 1903, H. Eggert 

 (MBG 83863) ; Walworth County, common in low grounds among thickets, near 

 Lake Beulah, July 26, 1905, James I. Shannon, No. 125a (MBG 84478, 84479). 



