C. Dewey on Caricography. 245 
C. Oederi, Ehrht.; has occurred in a dicecious form; numerous pis- 
tillate spikelets on one cu m, and the staminate one "to three short 
spikes on onery: culm, but both growing from the same root; about 
fifteen inches 
rand ih Sides Clinton ; a singular form. 
_ 3. C. viridula, Mx., is a var. of C. Oederi, Ehrht., as Dr. Torrey learned 
q from an peters die of the herbarium of Michaux, and as stated in this 
Journal, xxvii, p. 276, 1835, and Tor. Mon. , p- 417, 1836. New Evel 
the state of New York, and Canada have given forms of C. Oederi, short, 
small, with smooth culm : spikes three, the two lower axillary or Bracticie 
and pistillate entirely, nearly or quite ¢ sessile; and the upper one staminate 
below and all small, while the triquetrous rostrate acuminate fruit allies 
it to C. flava and not to C. triceps, It differs enough from C. Ocderi 
from C. triceps and C. hirsuta. So accurate was Dr. Torrey in that early 
day in the determination of nearly all the species of Carex given by 
chaux. 
C. Buabaumii, Wahl., C. polygana, Schk., (not Muh.) has very va- 
riable spikes, stigmas 3 in United States, an nd culm sharply ingest 
] 
and very scabrous to partially smooth. The pistillate scales i - 
are said to be cuspidate, about equalling, the fruit, and by o ahi to be 
ovate, mucronate or cuspidate. On specimens from Germany the scales 
and black or dark; rusty on the sides as als culm very stiff and 
rough. From the marsh, Bergen. 
5. = striatula, Mx., 1803; xxvii, 278, 1835. 
blanda, Dew.; x, 45, 1826, 
These two were found to be the same by Dr. Torrey, as he had a 
to the herbeiein of Michaux, and both are described under the last refer- 
ence; of the latter, its re , C. conoidea, Muh., given, while some 
botanists placed it under C. a 
6. C. vaginata, Tausch, xli, p. ai 1866, and var. alticaulis, Dew. 
Both of these forms have been abundant this season in the marsh at — 
reat numbers at Belleville, C. W., by Macoun, 
former. The refracted culm above the upper SS : 
spike has been uncommon this year at either locality. 
Am, Jour. Sci—Srconp Srrizes, Vou. XLII, No. 125.—Sepr., 1866. 
32 
