1920] SCnXEIDER, NOTES ON AMERICAN WILLOWS. VIII 215 



dular-denticulate margins." In some respect this species seems to be 

 closely related to S. pulchra Chamisso ^vilh which I have dealt on p. 70 of 

 this Journal, and to which var. yiiJ:onensis is rather similar. I also stated, 

 on p. 73, that tlie systematic position of S. pulchra is by no means clear 

 to me. The species most nearly related to S, Richardsonii is S. calcicoluy 

 the representative of that western Willow in eastern Canada. 



The following specimens of typical S. Richardsoni have been seen: 



Alaska. Canuicn Bay, Collinson Point, June 15, 191-1, F. Johanscn (No. 6 c. = 

 9379'>, O.; f. frugrn.; No. 100, 33803, O.; f.; dwarf Arctic form); Anvik (on Yukon 

 River, southeast of Norton Sound), April, /. W, Chapman (No. 41a, 41b, m.; G.; 

 folia juv(;nilia satis dense glanduloso-denticulata); Seward reninsula, Teller, June 

 21, 191G, Ella Gehrmann (f.; C); between Cape Nome and Port Clarence. June, 

 1901, A. J. Collier (m,, f,; W.); near Nome, June 21, 1903, F, Z. 7^6* (No. 8a, m.; 

 St.; '*dry creek, 1 mile north of Nome, tundra along creek bottom, plentiful," 0.9 to 

 1,2 m.); tundra behind Nome, along water courses, June 17, 1903, sanui coll. (No. 2, 

 m.; St.; *'2-3 feet high"); Porcupine River, without exact locality, summer 1891, 

 J. W. Turner (No. 1, m.; Jeps.); vicinity of Port Clarence, on Rocky banks, north- 

 west shore of Imuruk Basin, July 30, 1891, F. A, Walpoh (Nos. 1626, 1627, fr. ; W.) ; 

 at Teller Reindeer Station, on tundra, July 14, 1901, same coll, (No. 1441 m.; July 

 13, 1901, No. 1403, f.; 1426, f.; m.; W.) ; meadows at east end of Grantley Harbour, 

 July 30, 1901, same coll. (No. 1001, fr.; W.); banks of tundra near Beach at Teller 

 Reindeer station, August 7, 1901, same coll. (No. 1771, fr.; W.); banks north side 

 of Grantley Harbour, August 5, 1901, same coll. (No. 1753, fr.; W.); East Fork of 

 John River at camp, July 16-17, 1901, F. C Schradcr (st.; W.), southeastern Alaska, 

 Glacier W. P. & Y. R. R., June 9, 1900, F, A, IValpole (No. 1069, m.; W.)- 



NoRTuwESTERN BRiTisn COLUMBIA. Bctwccn Log Cabin and Frasier, June 7, 

 1900, F. /I. Walpole (No. 100^2, m., f.; W.). 



Yukon Territory. Selkirk Trail, September C, 1898, J. B. Tyrrell (No. 19450, 

 O.; St.); Carcross (Caribou Crossing), on shores of Lake Bennett near bri<lgc, July 

 3(5, 1914,^. Eastwood (Nos. 709, st.; 710, fr.; A., M.; "shrub IM in. high'*); Twenty- 

 four miles House, in a springy place, June 25, 1914, A. Eastwood (Nos. 384, fr.; 385, 

 m.; A., M.; in No. 385 folia partim satis dense serrata); Herschel Island, August, 

 1914, F. Johansen (No. 209, 93485, O.; fr.). 



NoRTu West Territories. Fort Franklin, Mackenzie River, "near Lake" 

 Richardson (f., ty[)e;K.; st.; G.); Minto Inlet, 1852, coll.? H.AI.S. Enterprise (f.; K.; 

 on the same sheet with the tj'pe); between Great Bear Lake and mouth of Copper- 

 mine River, without date and coll. (fr.; K.; on same sheet with type); Bernard Har- 

 bour, July, 1915, F. Johansen (No. 308a = 93779, O.; f.); Repulse Bay, south of 

 Melville rcniusula August 22, 1821, Parry (f.; G.; same as No. 93 lib. 11. B. & T.; 

 pedicello piloso), 



2. S. calcicola Fernald & Wiegand in Rhodora xiii. 251 (1911). — Salix 

 spec. Macoun in Bot. Gaz. xiii. 117 (Notes FL of James Bay) (1888). — 

 S. Richardsoni Bebb, L c. xiv. 50 (1889), quoad speciin. Bellii, non 

 Hooker. — S. Richardsoni var. Macouniana Bebb, 1. c. 50, t. 9 (1889). — S. 

 lanata var. Macouniana Bebb according to Macoun in Ann. Rep. Geol. 

 Surv. Can. n. s. iii. 70, J (1889), nomen nudum. — S. Macouniana Rowlee 

 in Herb. Cor., nom. ined., non S. Maconnii Rydberg. — This interesting 

 and well marked species has been fully described by Bebb and by Fernald 

 who gives the best account of it. The type was collected by J. M. Macoun 

 on the south Twin Island, according to the original label, a statement al- 

 ready made by Bebb, while Macoun himself in his account of the expedition 



