52 Rhodora [MARCH 
and myself, usually though not always succeeding. I think it a good 
plan to pick a solitary specimen if one deems it of sufficient interest 
to save while waiting for more. I make as good description as pos- 
sible and then am the better prepared to recognize the plant upon 
à second meeting. 
BROOKLINE, MASSACHUSETTS. 
ALLIES OF SOLIDAGO ODORA. 
ALBERT HANFORD Moore. 
IN 1881 Gray described a new species of Solidago, S. Chapmanii! 
which had been confused with S. odora Ait.2 The latter species was 
known to Plukenet and clearly illustrated in his works? Michaux! 
distinguished an 5. retrorsa, which is plainly a synonym of it, but his 
S. odora? is generally considered an equivalent of S. tortifolia EIL.,® 
and perhaps correctly. It is certainly not S. odora Ait., nor any of 
the other species included in the key below. 5S. lanceolata Bosc? is 
nothing but a mechanical synonym. S. odora can be told from all its 
allies by the longer and strictly lanceolate or linear-lanceolate, usually 
thinner leaves. 
The only other near relatives of S. odora, hitherto recognized, are S. 
tortifolia and S. fistulosa Mill. In the former the lower leaves are 
distantly serrate, the involucres smaller (3.5-4 mm. high, about 2 mm. 
broad), and their scales very blunt and erose, which is true in no other 
species of the group. The leaves of S. fistulosa are crenate-serrate, 
with more or less numerous scattered hairs on the lower surface, while 
in S. odora and S. Chapmanii the leaves are entire and glabrous, except 
for the scabrous margin. In S. tortifolia they are ciliate and with 
scabrous midrib. 
! Proc. Am. Acad. Arts & Sci. xvi, SO (1881). 
? Hort. Kew. ed. 1, iii, 214 (1789). 
?* Alm. Bot. Phyt. (Omn. op. iv) 389 (1696); Phyt. sive Stirp. Ill. minus Cogn. Ic. 
Tab. Aen. (Omn. op. i) t. 116, f. 6 (1691). 
* FI. Bor.-Am. ii, 117 (1803). 
5 Michx. 1. c. 118. 
* Sketch Bot. S.-C, & Ga. ii, 377 (1824). 
? DC. Prod. Syst. Nat. Regn. Veg. 334 (1886). 
8 Gard. Dict. ed. 8, no. 19 (1768). 
