76 Rhodora [APRIL 
Moore f. Pringlei (Scribn. & Sm.) Pease & Moore, comb. nov. 
Leaves (rarely the sheaths also) finely and densely pubescent, or with 
scattered hairs on one or both sides. 
Agropyron Gmelini (Ledeb.) Scribn. & Sm. var. Pringlei Scribn. 
& Sm. U.S. Dept. Agr. Div. Agrost. Bull. no. 4, 31 (Feb. 6, 1897). 
A. Seribneri Vasey, Bull. Torr. Bot. Club, x, 128 (Dec. 1883); 
Scribn. & Sm. l. c. 
Specimens examined: Mowrawa, Little Belt Mountains, August 
12, 1883 (F. Lamson Scribner, no. 427), “A. Scribneri, Type”: Wyo- 
MING, Medicine Bow Mountains, Albany Co., August 31, 1903 (L. N. 
Goodding, no. 2043): Coronapo, Gray's Peak and vicinity, 11-14000 
ft., August, 1885 (H. N. Patterson, no. 162); near Pagosa Peak, 12000 
ft., August, 1899 (C. F. Baker, no. 141): CALIFORNIA, Summit Valley, 
Sierra Nevada Mountains, September 23, 1882 (C. G. Pringle) — Type 
of A. caninum. var. Pringlei. 
13. A. CANINUM (L.) Beauv. var. UNILATERALE (Cassidy) Vasey. 
Size of spikes as in the type, except that the awns usually give them the 
appearance of being wider (6-8 mm.); awns ascending or appressed 
(generally unequally so, giving the spikes a unilateral appearance), 
from 2-5 cm. long (average 3-4 cm.).— Contr. U. S. Nat. Herb. i. 
279 (Oct. 31, 1893). 
Agropyrum unilaterale Cassidy, Colo. State Agr. Coll. Exper. 
Sta. Bull. no. 12, 63 (July, 1890); Scribn. & Sm. U. S. Dept. Agr. 
Div. Agrost. Bull. no. 4, 29 (Feb. 6, 1897). 
Agropyron caninum (L.) Beauv. f. violacescens Ramaley, Geol. 
Nat. Hist. Surv. Minn.— Minn. Bot. Studies, Bull. no. 9, 3, 107 (June 
9, 1894). 
A. violacescens (Ramaley ') Beal, Grasses N. A. ii, 635 (1896). 
A. violascens Scribn. & Sm. U. S. Dept. Agr. Div. Agrost. Bull. 
no. 4, 29 (Feb. 6, 1897). 
A. Richardsoni ('Trin.) Schrad. according to Scribn. & Sm. I. c., 
probably not A. Richardsoni Hort. Berol., Ind. Sem. Hort. Bot. Berol. 
1831 Collect. (1832), nomen nudum. 
Triticum Richardsoni Scribn. & Sm. l. c., not T. Richardsoni 
Schrad., Linnaea, xii, 467 (1838), Trin. according to Scribn. & Sm. l. c. 
Specimens examined: Disrricr or COLUMBIA, Plot 151, Potomac 
Flats, June 19, 1902 (Pollock and Ball) — Mixed with no. 4: COLORADO, 
Dillon (C. L. Shear, no. 1067); Twin Lakes, 1873 (J. Wolfe, no. 1168): 
Oregon, (Dr. Gardner"): ALBERTA, Devil's Head Lake, Banff, 
August 3, 1891 (J. Macoun), with comparatively short awns: ASSINI- 
nora, Eagle Hills, July 25, 1879 (J. Macoun); Cypress Hills, August 
2, 1880 (J. Macoun). 
14. A. CANINUM (L.) Beauv. var. UNILATERALE (Cassidy) Vasey f. 
ciliatum (Scribn. & Sm.) Pease & Moore, comb. nov. Sheaths varying 
1 Erroneously cited by Beal as R. Pound from the title-page of an earlier article on the 
Mucoraceae, 
