8 ERYTHEA. 
deemed sufficient to sustain it in generic rank, then it must 
go—as Dr. Kuntze says it must anyhow go—into Aster. No 
shrubs with cymose-corymbose inflorescence—probably no 
plants of any mode of growth with flat-topped inflorescence 
—are to be received into Solidago. Indeed, there are genera 
in plenty, belonging to other orders, which are distinguished 
by all botanists, on the ground of inflorescence alone. And 
these two shrubs of the Asteroidex, so far out of harmony 
with the great body of Solidago species, must be admitted as 
the type of a genus, the name of which, by undisputed right 
of priority is Curysoma; and the most genuine species are 
those now to be indicated. 
1. C. pauciflosculosa. Solidago pauciflosculosa, Michx. 
Fl. ii. 116 (1803); Torr. & Gray, Fl. ii. 225; Gray, Syn. Fl. 
161, in part, excluding the plant of the Bahamas. Chrysoma 
solidaginoides, Nutt. Journ. Philad. Acad. vii. 67 (1834) and 
Trans. Am. Phil. Soe. vii. 325. Aster pauciflosculosus, O. 
Ktze. Rey. Gen. 318 (1891). The most pronounced char- 
acter of this species, as compared with the next, is the 
remarkable almost favose reticulation of the surface of the 
leaves. The only suggestions of an approach to this reticula- 
tion I find in some species of another set of maritime or 
subsaline shrubs, the Isocomas; but Isocoma is remarkably 
distinct from Chrysoma in the form of its corollas, and the 
characters of its achene and pappus. But the two genera 
must surely be looked upon as nearly related. 
2. €. Domingensis. Solidago Domingensis, Spreng. 
Syst. iii. 369 (1826). Gundlachia Domingensis, Gray. Proc. 
Am. Acad. xvi. 100 (1880). More decidedly shrubby than 
the preceding; leaves acute, devoid of reticulation: rays 
white: achenes with little pubescence. 
Var. obtusifolia. Apparently only suffrutescent: leaves 
narrowly oblanceolate, obtuse. Plant of the Bahama Islands. 
From the genus Solidago as he limited it, these West 
Indian plants that make Asa Gray’s Gundlachia are in no 
wise to be distinguished. They have, indeed, white rays; but 
