1922] Blake,—The Genus Adventina 35 
is here reproduced for the convenience of those who do not have 
access to the original, it is clear that he was describing with consid- 
erable accuracy the characters of Galinsoga, and that his two species 
correspond to the plants now generally known as Galinsoga parviflora 
Cav. and G. aristulata Bicknell.! It is interesting to note that Raf- 
inesque observed the peculiar adherence between each ray-subtending 
phyllary and the two outer receptacular pales opposed to it, by which 
the ray achene at maturity is included between the three, somewhat 
as in Parthenium. This feature was likewise noted practically simul- 
taneously by DeCandolle in his Vargasia caracasana (now Galinsoga 
caracasana), but although an important generic character, is not 
mentioned by Bentham in the Genera Plantarum, although he had 
earlier noted it in his description of Galinsoga hispida?. 
The generic name proposed by Rafinesque falls, of course, into the 
synonymy of Galinsoga Cav. (1794), and his A. parviflora is likewise 
by a coincidence identical with Galinsoga parviflora Cav. (1794). 
There can be no question, moreover, that the species described by 
Rafinesque as Adventina ciliata, with its “thick pilose” stem, and 
“ovate serrate ciliate" leaves, as distinguished from his A. parvi- 
flora, with “slender diffuse smooth" stem and “ovate acute angular 
dentate" leaves, is the plant long known as G. parviflora var. hispida 
DC., and recently raised to specific rank as G. aristulata Bicknell 
(1916). As the name ciliata has not been used in the genus, it becomes 
necessary to call the common Galinsoga of the eastern States by the 
name 
Galinsoga cilata "Hat" Blake.—Adventina ciliata Raf. New Fl. 
N. Amer. 1: 67. 1836. Galinsoga parviflora y hispida DC. Prodr. 5: 
677. 1836; not G. hispida Benth. 1844. Galinsoga aristulata Bicknell, 
Bull. Torrey Club 43: 270. 1916. 
flowers very [sic] small, white rays hardly exserted. Very different from any known 
genus, nearest Achillea, but habit calix and seed unlike. Named after its adven- 
titious production near Philadelphia. Probably a Florida plant. Seen alive. 
"Figure Autikon 5, and Ic. n. mp. 5^ 
“2. a. CILIATA Raf. Stem thick pilose, trichotome and dichotome, leaves petio- 
late ovate serrate ciiate, flowers in forks or terminal subcorymbose—Found with 
the last, but in a different place and season: smaller, but flowers larger, Autumnal. 
annual, 6 to 10 inches high, hardly ramose or nearly simple. Messrs. Carr owners 
of Bartram's garden cannot accouvt for the spontaneous production of these plants 
and several others in their garden. 
“Figure Autikon 6. Icon. n. sp. 6." 
1 See St. John & White, RRopoRa 22: 98-101. 1920. 
2, Bot. Sulph. 120. 1844. 
