124 



An Undescribed Species of Alnus. — Some years ago I 

 collected fruiting specimens of a large alder in swampy woods, 

 along the edge of a brook on the coastal plain of Staten Island, 

 near Grant City ; these were at the time referred to Abuts incana, 

 though with doubt, inasmuch as the height of the tree seemed 

 much too great for that species, and the large, strongly-pointed 

 leaves seemed also to be different from those of any specimens of 

 incana that I had seen. The woods in which this tree grew were 

 cut away soon after my collection was made, and, though a search 

 was made in the vicinity for other plants, I was never able to find 

 another specimen. I have been confident for a long time that it 

 represented a species distinct from both the European Alnus 

 incana and its American representative, Alnns glauca Michx., 

 which I think very likely to be distinct from incana. Mr. Bick- 

 nell has found this summer shrubs with foliage evidently the 

 same as my tree from Grant City, in similar situations in south- 

 eastern Long Island, so I now feel warranted in proposing this 

 apparently local plant as an undescribed species. 



y Alnus Noveboracensis sp. nov. 



A shrub or small tree, sometimes 8 m. tall, with a trunk i 

 dm. thick. Young twigs and petioles densely pubescent ; leaves 

 oblong to obovate, acute at both ends, 12 cm. long or less, 

 sharply irregularly serrate, very densely pubescent on the prom- 

 inent veins beneath, otherwise glabrous or nearl)' so, dark green 

 above, paler green but not at all glaucous on the under side ; 

 ripe pistillate aments numerous, oblong, 1.5 cm. long, very 

 short-stalked ; nut oval, about one half longer than wide, nar- 

 rowly margined. 



Woods and thickets near the coast, southeastern New York. 

 Type from Grant City, Staten Island. 



•^ N. L. l^RITTON. 



PROCEEDINGS OF THE CLUB 

 Tuesday, Mav 10, 1904. 

 This meeting was held in the library of the New York College 

 of Pharmacy and 15 persons were present, Rev. L. H. Lighthipe 

 presiding. 



