Petals equal in number to the calycine segments and alter- 
nating with them, deep yellow, lanceolate, stellately ex- 
panded. Stamens doubling the number of the petals. 
Germens as many as petals, each with a small notched 
scalelike membranous gland at the base, the nectary of 
Linneeus. 
NOTE. 
__ In the English text of the article Acrostrcuum alcicorne (262, 263) in 
~ the third volume of this publication, we have explained erroneously the 
term Gyrate, used by Dr. Swartz in his celebrated Synopsis as the deno- 
mination of one of his divisions of the Order Filices, by referring its mean- 
ing to the involution of the nascent fronds; while in truth it is intended by 
that ingenious author to designate a division of this natural family, the 
species of which are furnished with capsules that are encircled by an articu: 
lated ring or sphincter, by the curious elastic nitency of which these are 
enabled, when ripe, to evacuate and project their fine dustlike:seeds. We 
are obliged to Mr. Brown for pointing out to us our blunder, 
