C. Dewey on Caricography—Index. 325 
Art. XLIV.—Caricography ; by Prof. C. Dewry. 
Continued from vol, xlii, p. 331, 1866. (No. 44.) 
Index to the Species. 
Tue description of the species of Carex of our country in 
this Journal was especially designed to aid those who had just 
entered upon the study of our plants. It was begun in 1824, 
only seven years after the great impulse, produced by the lec- 
tures of Professor Amos Eaton, to the study of botany and some 
other branches of natural history. There were few works on 
botany accessible to students; and, even when I had in 1815 
ascertained the principles of the Artificial System of Linneus 
and studied the genera in a general botany, no work describing 
the species was accessible. ‘Che Gramina of Dr. Muhlenberg 
was published in 1817, and his Catalogue of our plants a little 
earlier, These, with Persoon’s Synopsis, the Reedgrass of Chris- 
tian Schkuhr, and a Botanical Dictionary, were the works of 
which Eaton made such valuable and extensive application. The 
standard authors on Carices then were Schkuhr and Muhlenberg; 
and they were implicitly followed, even in the few mistakes they 
made, and for the correction of which no method occurred for 
many years. As knowledge of the species increased, the diffi- 
culties became perplexing, especially in relation to Carex erinita 
and C. paleacea, C. oligocarpa and C. digitalis, C. folliculata and 
var. xanthophysa, C. plantaginea and C. anceps. W hile American 
otanists have solved many of the difficulties, far more has been 
effected in the study of our North American Carices by Francis 
Boott, M.D., of the Linnzan Society, England, who enjoyed the 
greatest facilities and showed the most persevering activity. 
n the Index, the quoted authorities are necessarily few. The 
name of the species, or the jirst name (when more are given), is 
considered the designation due to the species; the synonyms are 
in talics, The references, besides Schkuhr and Muhlenberg 
already mentioned, are chiefly the following: 
Monograph of N. Am. Cyperacea, by John Torrey, M.D., pub- 
lished in 1838, and his Botany of the State of New York, 1843. 
The reference is Mon. 1836, or Tor. 1836 or 1843, or both. _ 
Flora Boreali-Americana, Michaux, 1803. Though earlier 
deem. it was of little use to us, till the result of Dr. Torrey’s 
‘xamination of the Herbarium of Michaux in Paris, was pu 
lished in vol. xxvii, 1835. ge : 
arices Am. Septen. Exsiccate; edidit H. P. Sartwell, M.D., 
1848. ParsIet II. This collection of Carices, not figures, 158 
in number, nearly all correct, and fine specimens, is very inter- 
esting. The reference is Sart. or Exsic. 1848. ey 
Prof. Tuckerman’s Enumeratio Methodica, 1843, scientific, dis- 
criminating and curious, has some important references. : 
Jour. Sc1.—Srconpw Szries, Vou. XLII, No. 126.—Nov., 1866, 
42 
