2947.
JUNGEllMANNIA Ianceolata.
L a n c e - le a v e d J u n g e r m a n n i a .
CR YP TO GAMTA Hepatic#.
Gen. Char. Common receptacle of the fruit none.
P e r ia n t h or c a ly x monophyllous, tubular (rarely absent). C a p s u le 4-valved, terminating a peduncle
which is longer than the perianth.
Spec. Char. Stem prostrate, nearly simple. Leaves spreading, roundish-oblong, oblique. Perianth
ascending, subarcuate, clavato-cylindrical, depressed
at the summit and minutely umbilicate.
Syn. Jungermannia Ianceolata. L i n n . S p . P I . e d . 2. 1597. H o o k e r B r i t . J u n g e r m , t. 18; E n g l .
F lo r a , v 5. p t . 1. 108. L in d e n b . H e p . E u r . 71.
Lionc. h7la0e.na lan ceolata. N e e s a b E . in S y n . H e p a t. 150.
Jungerm anniapalustris, minima, repens; foliissub-
rotundis, densissimis, laste virentibus. M ic h e li
N o v . G e n . 8. t. 5./. 6 a n d 7.
T h e plant figured at t. 605 of this work, under the
name of Jungermannia Ianceolata, having been proved to be
J. scalaris (see Hooker’s Monograph, t. 18 and 61),^ it has
become necessary to add a figure of the true plant, which was
first ascertained to be British by Mr. Borrer, who found it a
few years ago at the Harrison’s Rocks, near Tunbridge Wells.
The specimens here depicted were gathered in December 1847,
in the upper part of the vale of the Yorkshire Esk (Cronkley
Gill), where it forms patches, often of many feet square, on
the surface of moist rocks which contain a large proportion
of ferruginous and aluminous matters. A tuft sent to Mr.
Borrer was by him preserved under glass until it fruited in
April last (1848). We had previously (December 1842) observed
it in the lower part of the same valley, within a few miles
of Whitby. The J. Ianceolata, said by Mr. Teesdale, in his
Plantce Eboracensesm the 2nd volume of the Liuncean Transactions,
to grow on the western side of the same district
(Hawnby Hill, near Helmsley), may possibly be the veritable