176 SEVENTEENTH REPORT. 



Mespilus Canadensis Var. obovalis Mx. Fl. Bor. Am. 1, 291, 1803. 



Amelanchier Canadensis B. oblongifolia T. & G. Fl. N, Am. 1, 473, 

 1840. 



Amelanchier ohiongifolia Roemer Nat. Syst. Rosifl. 147, 1847. 



A shrub never attaining the size of a tree; leaves often broader above 

 the middle than below. Farwell No. 49a, August 10, 1883 from the 

 Keweenaw Peninsula, No. 1351i May 6, 1893 from Belle Isle; No. 

 49d, April 23, 1910 from Rochester; No. 3333, May 4, 1913, from 

 Parkedale Farm. Gronovius described his Mespilas with glabrous, 

 " obverse-ovatis " leaves; he may have had this variety with mature 

 leaves which would have been glabrous or glabrate. 



Amelanchier Botryapium (Lin. f.) Borkh. Var. micropetala (Robinson) 

 N. Comb. 



Amelanchier ohiongifolia var micropetala Robinson, Rhodora, 10, 33, 

 1908. 



A. humilis Wiegand, Rhodora, 14, 141, 1912. 



.4. stolonifera Wiegand, Rhodora, 14, 144, 1912. 



A low stoloniferous shrub of rocky or sandy soils from half a foot to 

 three or four in height. Farwell No. 51a, August 13, 1883 and No. 

 3075, Aug. 22, 1912, from the Keweenaw Peninsula; No. 51b, July 16, 

 1905 from Island Lake; No. 51c, April 23, 1910, from Rochester; No. 

 3322, May 4, 1913, from Parkedale Farm. 



Amelanchier Botryapium (Lin. f.) Borkh. Var. conferta N. Var. 



Small shrub similar to the preceding variety; raceme of 12 to 15 

 flowers about an inch in length, compact; calyx lobes five with an inner 

 row of five alternating and 10 petals in the interstices; petals equalling 

 the calyx lobes or just overtopping them, about a line long, linear or 

 spatulate and like the calyx lobes more or less woolly. Farwell No. 

 3625 May 15, 1914 near Rochester. 



Callistachya Virginica (Lin.) Raf. Variety lanceolata, N. Var. 



Differs from the species in having narrowly lanceolate, acuminate 

 leaves. Farwell No. 1165, July 18, 1891 from Ypsilanti, No. 1165a, 

 July 25, 1892, from Belle Isle, No. 2937, July 28, 1912 and No. 3834, 

 Aug. 9, 1914 from Parkedale farm, No. 2884, July 20, 1912, from Ro-. 

 Chester. 



The type of Veronica Virginica Lin. is the plant with broad (oval or 

 ellipitical) acute leaves. Both forms occur in ]\Iichigan but the variety 

 is much the commoner form. Callistachya Raf. in Med. Repos. New 

 York, 5, 60, 1808 is the oldest name for this genus and is available 

 under Articles 50 and 57 of the Vienna Rules. The former provides 

 that no genus-name should be rejected, changed, or modified on account 

 of an earlier homonym universally regarded as non-valid; and the 

 latter that two generic names, differing onlv in the termination even 



