ASTER IOSTEMMA 353 
— This species A. zostemma perhaps includes a part at least 
of the plants of which Gray remarks, under A. macrophyllus L., 
Syn. Fl. 175: 
“ A robust form, with large heads, more glandular involucre 
and peduncles, upper leaves ovate and sessile, lower and petioled 
cauline leaves all rounded at base, and most of the radical ones 
little cordate (A. macrophyllus of Willd. herb. chiefly, the rays per- 
haps violet), comes near the next following." Of the 7 speci- 
mens labelled “ A. macrophyllus” in the Willdenovian herbarium, 
kindly examined for me by Prof. L. M. Underwood, Nos. 1, 2 and 
5 may belong under A. iostemma ; some others seem to belong to 
A. macrophyllus verus. 
Of the “next following " group (A. mirabilis, A. Hervey, A. 
spectabilis, etc.), A. Herveyi, the only one which could lead to 
confusion with 4. zostemma, is much lower and more slender ; its 
heads are fewer, broader, longer-pedicelled, more remote ; its 
leaves are of a different duller green; its cordation is far more 
rare and slight, no well-defined brace-bases occurring. 
Habitat, rich shaded banks, clearings and half-shaded road- 
sides, New Hampshire to N. Y. City and L. Erie. 
Examples include : 
N. H., Gorham, 900 ft. alt., near Shelburne line, at Q. Evans’ farm, 
Androscoggin DS Au. 9, 1902, in early flower ; obliterated in 1904. 
Ms dm. "ER, cleared woodland, 4 and 414 ft. tall, in great 
profusion ; epee Pul ar white and ly violet on iB us NE July 31,98," £. P. 
Bicknell in hb. Bu. Yonkers, Grassy liprin L., in deep shade, Se. 17, ig Moran 
late sprouts of the same, thinner, smoother, darker green. Bryn Mawr , below 
Cohosh Bluff, mass of tall early plants with narrow rays, near woodroad nnw. aug Maple 
` Av., July, '98; well-developed long radicals May 13, '99; 40 plants in P blossom, 
July 28, 99; a few plants 1900-1904 ; obliterated p 
W. N. Y., Cattaraugus resn., 600-800 ft. alt. ; Little-Indian slopes to east 
and north of Straw. de. Au. 24, tok; à many ie powie up out of leaf-mold covered 
yet with dead leaves; type locality. Si/ver Cr., Swift's Hill, pani narrow-radi- 
cal plants, rather low. Salamanca, Au., C. H. Peck in hb, ES. 
67. Aster gremialis sp. nov. 
Tall robust plants with smooth green stem, broad roundish 
or orbicular-ovate sharp-serrate lower leaves, broad deep sinus, 
long taper-based lance-acuminate subentire broad-winged axiles, 
loose broad inflorescence, weak slender branches, and long dark 
narrow blue-violet rays. 
