Cp o 
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CATALOGUE OF CRYPTOGAMIC PLANTS. 361 
second section of Metzgeria, which are precisely of the same structure, 
and differ but little in habit. 
161. Metzgeria furcata, Nees. Var. 8. major, Synops. Hepat. p. 502. 
162. M. dichotoma, Nees. 
More than twice the size of original specimens from Swartz in Hb. 
Hooker, but doubtfully distinct from M. furcata. 
163. M. furcata, Nees. Var. 8. gemmifera, Synops. Hepat. p. 503. 
164. M. filicina, Mitten, MSS. ; fronde pinnatim divisa lineari glabra 
margine setulosa, calyptris ut plurimum axillaribus. 
This species has all the habit and appearance of M. furcata, except 
that it is branched in a pinnate manner, and not irregularly dicho- 
tomous: the stems are about two inches high, and the ramuli about 
half an inch long: the calyptra resembles that of M. furcata. 
165. Dendroceros Jamesoni, Tayl. Lond. Journ, Bot. 1848. p. 285. 
166. Marchantia Berteroana, L. et Ldbg. 
167. Fimbriaria elegans, Spreng. 
168. Usnea arbata, Ach. a. florida, Fries. 
6. U. barbata, Ach. 
169. U, melavantha, Ach. 
170. Evernia flavicans, Fries. 
171. Cladonia gracilis, var. C. vermicularis, Scherer. 
172. Peltidea rufescens, Ach. 
178. Sticta macrophylla, Fee. 
b. Eadem. 
e. Eadem? 
174. S. dissecta, Ach. ? 
175. Parmelia crenulata, Eschweiler. 
176. P. sinuosa. ; 
177. Ramalina calicaris, Fries. 
178. Parmelia Zeucomela, Fries, var. 
179. Stereocaulon ramulosum, Ach. 
180. Cladonia Jamesoni (Tayl.), Mitten. Bæomyces Jamesoni, Tayl.  — 
The structure of the apothecia of this species is that of Cladonia, - 
and not that of Beomyces. 
181. Collema éremelloides, Ach. 
