1908] Fernald,— Plants of northeastern America 91 
humilis. Nevertheless, although proposed by Professor Greene 
for a plant which he supposed distinct, S. racemosa is the first name 
clearly applied to the plant with racemose inflorescence which has 
passed as S. humilis or S. Purshi. 
SOLIDAGO RACEMOsA Greene, var. Gillmani (Gray), n. comb. 5. 
humilis, var. Gillmani Gray, Proc. Am. Acad. xvii. 191 (1882). S. 
Virgaurea, var. Gillmani Porter, Bull. Torr. Bot. Cl. xx. 209 (1893). 
This splendid plant of the Great Lake region has not only the leaf- 
texture and -outline but the axillary fascicles, the elongate pedicels, 
and the involucre and achenes of S. racemosa, and seems to differ 
only in its great size and in the tendency of the lower leaves to have 
longer and sharper teeth. 
SoLIDAGO ruGosA Mill, var. villosa (Pursh), n. comb. S. villosa 
Pursh, Fl. ii. 537 (1814). The material in the Banks herbarium 
upon which Pursh based his species represents a beautifully marked 
extreme of S. rugosa in which the panicle is elongate and most of the 
racemes nearly equaled or exceeded by the large subtending leaves. 
It is the common tendency of the species in western Newfoundland, 
southern Labrador, and the lower St. Lawrence region, extending 
into northern Maine. 
SoLrpAao ALTISSIMA L. Sp. 878 (1753). As stated by Dr. Gray, 
“the true original of the Linnaean species is the ‘Virga aurea altissima 
serotina, panicula speciosa patula, Mart. Cent. 14, t. 14." + This 
plate? is remarkably characteristic and represents a plant which was 
taken by Dr. Gray as “а large form of 8. Canadensis.” In fact, 
Linnaeus compares it with S. canadensis in the following words: 
* Habitus praecedenti [S. canadensis] simillimus, diversus magnitudine, 
tempore florendi, serraturis nervisque foliorum," еќс., thus showing a 
clearer conception of the two plants, S. canadensis and S. altissima, 
than have most subsequent authors. 8. canadensis, as interpreted 
by Dr. Gray, apparently with good reason, is the small-headed plant 
which has subsequently been described as S. canadensis, var. glabrata 
Porter, Bull. 'Torr. Bot. Cl. xxi. 310 (1894). Dr. Porter, in describing 
the northern plant as var. glabrata, separated it from the commoner 
plant southward on account of its smoother stem, linear-lanceolate 
sharp-serrate smoothish leaves, and especially its smaller panicles 
and involucres; characters which in the main agree with the Linnaean 
1 Gray, Proc. Am. Acad. xvii. 177 (1882). 3 L. Sp. 8781(1753). 
? Martyn, Hist. Pl. 14, t. 14, (1728). 
