1 70 Rhodora [September 



2 numbers being the short-scaled tree, 7 the long-scaled. Fruiting 

 specimens from Newfoundland and Labrador are wanting, but it is 

 significant that nearly all material at hand from Connecticut (6 out 

 of 7 collections), New York (9 out of 10) and Tennessee (2) are of 

 the long-scaled extreme. Whatever factor may influence the dis- 

 tribution of the two it would seem that the typical short-scaled B. 

 lutea cannot be regarded as generally of more southern range than 

 the other. 



To summarize, the two varieties of Betula lutea are: 

 Betula lutea Michx. f. Hist, des Arbres Forest, de l'Am. Sept. 

 ii. 152, t. 5 (1812). B. excelsa Pursh, Fl. Am. Sept. ii. 621 (1814), 

 not Ait. B. lenta, <x genuina Regel, Nouv. Mem. Soc. Nat. Mosc. xiii. 

 126, in part (1860). B. lenta, § lutea Regel in DC. Prodr. xvi. pt. 2: 

 179 (1868). B. alleghaniensis Britton, Bull. Torr. Bot. CI. xxxi. 166 

 (1904), North Am. Trees, 257, fig. 216 (1908). B. lutea alleghaniensis 

 (Britton) Ashe, Bull. Chariest. Mus. xiv. 11 (1918).— Scales of the 

 fruiting anient firm and subcoriaceous, 5-8 mm. long; the cuneate 

 basal portion 1-2.5 mm. long. — Cape Breton Island and Gaspe Co., 

 Quebec to Ontario, south to the mountains of North Carolina, West 

 Virginia, Illinois and Iowa. 1 



Var. macrolepis, n. var., squamis subfoliaceis maturitate 8-13 mm. 

 longis, parte pedali elongata 2.5-6 mm. longa. B. lutea Britton, No" 

 Am. Trees, 258, fig. 217 (1908).— New Brunswick to Wisconsin' 

 south to Tennessee, Indiana and Illinois. The following are character- 

 istic. New Brunswick: swamps, Campbellton, July, 1877, R. 

 Chalmers. Nova Scotia: Comeauville, August, 1900, L. L. Dame; 

 mixed woods, Argyle, August 4, 1920, Long & hinder, no. 21,001; 

 wooded roadside, Armdale (Dutch Village), July 28, 1921, Fernald, 

 Bart ram & Long, no. 23,766. Maine: rocky woods, Dover, August 5, 

 1895, Fernald, no. 383; woods, High Head, Mount Desert Island, 

 June 15, 1889, Rand; South Poland, 1893, Kate Furbish. New 

 Hampshire: Randolph, August 17, 1902, Pease, no. 440; Breezy 

 Point, Warren, July 23, 1908, E. F. Williams; woods, Dublin, July 

 23, 1897, B. L. Robinson, no. 266 (type in Gray Herb.). Vermont: 

 Windham, July 9, 1904, W. II. Blanchard, no. 11. Massachusetts: 

 Beverly, Asa Gray; Needham, December 9, 1883, T. 0. Fuller; border 

 of Chamaecyparis swamp, Hanson, October 29, 1916, Fernald, no. 

 15,128; Granville, September 20, 1913, F. C. Seymour, no. 34; Kitchen 

 Brook, Cheshire, July 27, 1916, ./. Li. Churchill. Rhode Island: 

 Johnston, S. T. Olney; border of low woods, Tiverton, June 11, 1912, 

 S. N. F. SSauford. Connecticut: woods about Keney Park, Hart- 

 ford, September 8, 1907, A. W. Driggs; woods, Southington, August 



1 Without fruiting material it is impossible to determine the exact identity of 

 the Yellow Birch of Newfoundland, Labrador, and some regions to the south of the 

 limits here given. 



