254 C. Dewey on Caricography. 
C. Persoonii, Sieb., is the proper name due to the plant. 
This species is wholly different from C. disperma, Dew., for 
which GC. vitilis, has been substituted by Dr. Boott. But ‘this 
has stamens below, and C. disperma above ; and the fruit and scale 
of the latter are very diverse from those ‘of the former. In our 
country, C. Persoonii, Sieb. the C. vitilis, Fries, can not be con- 
founded with C. disperma, Dew. 'The above characters show 
that this substitution can not be sustained. The somewhat vine- 
like form of C. Persoonii, for which it was pe C. vitilis by 
Fries, is directly opposed to such confounding of names. 
It is to be noticed also, that C. disperma is not confounded > 
with C. gracilis, Ehrh. by Dr. Boott, or with the very different 
C. gracilis, Schk., Part First, p. 48, fig. 24, which is described by 
Schk. with stamens below, ane not ‘above, and which is probably 
a minor form of C. spherostachya, the C. Persoonii, Sieb. given 
above ; see the remarks on that species, vol. xlviii, p. 44, in this 
Journal. 
No. 249. C. tenaz, er nk in MS. Boott, Richardsoni 
Arct. E 
xped. 
C. Chapmani, Sartewellii, Am. Sept. Exsic. 
Spica staminifera unica brevi; spicis pistilliferis 2-3, ovatis vel 
brevi-cylindraceis, densi-fructiferis, inferiore subpedicellata ; fruc- 
tibus éristigmaticis variis infra subteretibus, longo-conicis, ve 
brevioribus et bidentatis, multinervo-striatis tomentosis, squama 
ovata acuta duplo longioribus. 
Culm a foot high, erect, with leaves short and flat ; staminate 
spike short, with ‘oblong and acutish scales ; ; pistillate spikes ustl- 
ally three, lowest pedunenlate, ovate or short, cylindric, clneeaas : 
pid stigmas three ; fruit some tapering downwards, ventricose 
idle, ong o r short conic and often bidentate, villose, oe 
Reved or stip: pistillate scale ovate, acute or mucronate, half. 
the length of the ‘fruit 
Florida: Dr. Giepiae who long since ean it from 
_&, dasycarpa Muhl. and gave it the above 
rom C. dasycarpa, whose fruit is ovate, oats ane 
rather obtuse, scarcely nerved or striate, it is easily separate 
Nore.—The following views of the pon iee of the species 
to be mentioned, are presented, in the hope of throwing some 
light upon a difficulty long felt in our colin 
C. loliacea, L. et Wat iL. 
C. gracilis, Ehrh., Lang in Linnea, vol. viii, p. 542, No. 56. 
Sill. Journ., vol. xi, p. 306, Serie prima. 
Culmo tenui gracili scabriusculo, foliis planis margine subsca- 
briusculis ; spica composita, spiculis 3-4 rotundis paucifloris gyn@- 
candris (infra ers) remotis; fructibus oblongo-ellipticis 
_ Nervosis obtuse er rostratis, ore integer imo. Lang ut supra. 
aS 
