366 MR. RICHARD SPRUCE’S HEPATICH ELLIOTTIANE. 
extend throughout the entire length of South America; nor has 
anyone hitherto been able to separate the West-Indian and 
South-American from the Australasian plant specifically. 
A few years ago some fern-roots from New Zealand reached 
Backhouse’s nursery at York, and on them grew an unknown 
frondose hepatic. It was sterile but throve well in its new home. 
Mr. Webster, the manager, watched it sedulously; but some 
years elapsed ere it showed signs of flowering and at length pro- 
duced a single perfect fruit, which he sent to me. This proved 
the plant to be the Monoclea leptohymenia, Tayl., “ Hepat. Ant- 
arct.” in Lond. Journ. Bot. 1844, p. 575= Dendroceros lepto- 
hymenius, Synops. Hepat. 1847, p. 580, “Columella tenuissima, 
nec nisi ope lentis observanda.” It is a true Monoclea, with all 
the characters of that genus; involucres, follicular capsule, bi- 
spirous elaters, &c., all as in I. Forsteri, but the frond much 
broader and thinner. Taylor’s description is accurate enough, 
except as to the “columella tenuissima”’ &c.; for there is no 
columella, and what has been taken for one has probably been a 
thread-like strip split off the edge of the follicular capsule in 
dehiscence. 
Subtribus vi. METZG ERIE. 
Genus 26. AnEuRA, Dum. 
Of Aneura I enumerate 9 species. Those I propose as new 
seem distinct enough, but are unfortunately most of them sterile. 
There may even be two or three additional species, attached to 
other hepatics, but the plants are too fragmentary to describe. 
145. A. FucompEs. Metzgeria fucoides, Nees, Lindenb. et 
Gottsche, in Syn. Hep. p. 506.—Dominica, Morne Trois 
Pitons (741, 761). 
146. A. piaBtotina, Spruce, n. sp. 
Dioica, e rufo olivacea; frondes 1-2 cm. alte, e caudice re- 
pente orte, bipinnate, caule primario exalato, sectione ovali ; 
pinne pinuuleque opposite, late alate, costa pinnarum 5 cellulas 
crasse ; pinnule densa, lineares vel sublanceolate, alis 4-5 cell. 
jatis, costé 3-4 cell. opertdé, 3 cell. crassé, margine repande, 
apicem versus obsolete denticulate, apice retuse vel (superiores 
precipue) attenuate hamateque ; cellule alarum majuscule, 
gz mm.) subequilatere, pachydermes, trigonis angularibus aucte. 
