16 NORTH AMERICAN FLORA [Volume 25 



40. Geranium Cowenii Rydb. Fl. Colo. 218. 1906. 

 Perennial, the eaudex sparingly branched. Stems few together, scape-like, erect, 3-5 

 dm. long, retrorsely pubescent ; leaf-blades pentagonal in outline, 2.5-6 cm. wide, 3-5-parted, 

 the divisions cleft, lobed or toothed, thickish, rather canescent ; petioles of the lower leaves 

 elongate, pubescent like the stem; pedicels more or less hirsute; sepals awn-tipped, the 

 outer ones 10-12 mm. long, the bodies elliptic, ciliate ; petals pink-purple, 12-15 mm. long ; 

 style-column 15-18 mm. long, finely pubescent and sometimes sparingly glandular ; seeds 

 reticulate. 



Type locality: Not given, but the tvpe was collected in Rist Canon, Colorado, II'. F. Mar- 

 shall 1151. 



Distribution: Colorado and Wyoming. 



41. Geranium marginale Rydberg, sp. nov. 

 Perennial, the eaudex cespitosely branched. Stems erect or ascending, 1-4 dm. long, 

 commonly simple below, minutely pubescent with short retrorse and rather appressed hairs; 

 leaf-blades pentagonal in outline, 2-3 cm. wide, minutely pubescent, 3-5-parted, the divi- 

 sions, at least the terminal one, cuneate, and mostly 3-toothed at the apex ; pedicels closely 

 retrorse-pubescent ; sepals awn-tipped, the outer ones 8-9.5 mm. long, the bodies elliptic- 

 lanceolate, minutely pubescent; petals light-pink or rose-colored, 12-15 mm. long; style- 

 column 15-18 mm. long, minutely hirsute; carpel-bodies 4.5-5 mm. long, sparingly pubes- 

 cent. 



Tvpe collected on the Aquarius Plateau at the head of Poison Creek, Utah, August 4, 1905, P. 

 A. Rydberg & E. C. Carl Ion 7401. 

 Distribution : Utah. 



42. Geranium gracile Engelm. in A. Gray, PI. Fendl. 27. 1S49. 



Geranium atropurpureum Heller, Bull. Torrey Club 28 : 195. 189S. 



Perennial, the eaudex branched. Stems tufted, ascending or spreading, 1-9 dm. long, 

 often scape-like, retrorsely pubescent; leaf-blades thick, those of the lower leaves reniform 

 or orbicular, 2-5 cm. wide, those of the upper pentagonal or triangular, all canescent or 

 strigillose-canescent, 3-5-parted, the divisions incised or coarsely toothed ; pedicels retrorsely 

 pubescent with usually glandless hairs; sepals awn-tipped, the outer ones 10-11.5 mm. 

 long, the bodies broadly oblong, finely pubescent and ciliate ; petals purple, 12-15 mm. 

 long; style-column 19-23 mm. long, minutely pubescent ; carpel-bodies 3.5^1 mm. long, 

 finely pilose ; seeds reticulate. 



Type locality : Cosiquiriachi, Chihuahua, Mexico. 

 Distribution : Colorado to New Mexico and northern Mexico. 



43. Geranium furcatum Hanks, sp. nov. 

 Perennial, the eaudex branched. Stems and leaf-blades similar to those of Geranium 

 gracile but usually densely glandular ; petioles and pedicels glandular-pubescent, the 

 petioles sometimes obscurely so; sepals awn-tipped, the outer ones 10.5-11.5 mm. long, 

 the bodies narrowly oblong, glandular-pubescent and sparingly ciliate ; petals purple, 12- 

 16 mm. long; style-column 19-23 mm. long, glandular-pubescent; carpel-bodies 4-5 mm. 

 long, glandular-pubescent; seeds pitted. 



Type collected in the Grand Canon of the Colorado, Arizona, August, 1897, T. F. Allen. 

 Distribution : Arizona. 



44. Geranium Palmeri Rose, sp. nov. 

 Perennial, the eaudex usually simple. Stem erect or ascending, 3-4 dm. long, finely 

 pubescent with short curved hairs ; leaf-blades triangular or somewhat pentagonal in out- 

 line, 2-4 cm. wide, with scattered hairs above, sparingly short-hirsute on the veins beneath, 

 mainly 3-parted, the divisions 1-pinnatifid; pedicels rather long, mostly 3-5 cm. long after 

 anthesis, finely and often closely pubescent with short crisped hairs ; sepals awn-tipped, 

 the outer ones 8-9 mm. long, copioush' fine-hirsute near the margins and minutely pubes- 

 cent between the ribs, the inner ones mostly broader than the outer, with broad scarious 



