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: Botanical Writings of Rafinesque. 235 
oe. 
decupied.* The following have never been identified, viz. Dis- 
jum, Leptrina, Flecularia, Anthipsimus, and the five acoty- 
ledonous genera. In the same year (1819,) he again published 
three of these genera, viz. Cylactis, Nemopanthes, and Polani- 
sia, in the first volume of the American Journal of Science, to 
which he also contributed several short botanical and zoological, 
or miscellaneous articles. His botanical Writings between the 
years 1820 and 1830, inclusive, as far as we can ascertain them, 
are the following, viz. d 
Annals of Nature, or‘an Annual Synopsis of New Genera 
and Species of Animals, Plants, &c., discovered in North Amer- 
ica, 1820. A pamphlet of sixteen pages, printed at Lexington, 
Kentucky: it is chiefly occupied with zoology ; but it contains 
brief characters of about fifty proposed species of plants, three or 
four of which are possibly new; but we can only vouch for a 
single species of the number. The four new genera proposed, 
are no better than the species. 
Seription of Pursh’s Gerardia fruticosa—Pentstemon,) Neurosperma (Momordica,) 
Debstylis (Trillium,) Critesion (Hordeum,) Trisiola (Uniola,) Torreya and Dis- 
YI on (=Sceirp pitosus and S. triqueter !) under which 
two additional genera are proposed, viz. Diplarinus for the Scirpi with two stamens, 
and Dichismus for those with two st} " ; 
tOne of these articles is devoted a consideration a the natural affinities of 
Flerkea ; which he considers as forming a small family along with Galenia!! 
While Nectris,to which Pursh united it, is said to stand next to Myriophyllum! 
t Nysanthes is probably Lindernia, incorrectly described. ‘Peramibus is founded 
4 genuine Rudbeckia. Hedychloe is Kyllingia pumila. The characters of the 
VYperus.) Anlostem. 
7s ps 
Pericle campanulated ; netted outside, margin erose, insides scaly and dark spotted. 
~ *his may be the type of the genus. Size, four or five inches. It grows in the 
State of New York.--4. dimidiata. Sessile, dimidiated, imbricated, wrinkled 
above and fulvous with brown or black zones, netted beneath ; veins often bifid 
hear the margin.—Near Catskill, State of New York. It may be the type of a sub- 
genus, Campsilicus. 
+T A floating gelatinous and floccose mass, easily divided an 
homogeneous, without any perceptible filaments or organs.—A very singular genu 
next to my @, Potarcus. It differs from Conferva, which consists of five fixed fila- 
eeeand Oscillatoria of i ticulated ones, I could not perceive any fila- 
ments in it, Perhaps a microscope might show some [! !] surrounded by ajelly. The 
mame means tow in Greek.—S, fluitans. Floating, elongated perpendicularly ; 
“mlorphous, floccose or lacerated ; of a dirty yellowish or brown color.—Very com- 
\ye . 
