that in the Herbarium of Nees, are found specimens of both forms
and of paroicous species, along with Jimg. alpestris under the
name of Jung, gjorphgroleiica,
A peculiar type of this species has been collected by the late
John Whitehead near Woodhead, Cheshire, which is chiefly
remarkable for the extremely large number of pistillidia; I have
counted 37, 54 and 57 in three involucres, in this character
approaching Jung. Mildei, G., with which it has other charaoters
somewhat in common—bracts broadly ovate, unequally trifid or
quadrifid and perianth plicate. Jung. Mildei, G., differs, however,
from it, in its yellowish-brown colour not a bluish-green, with
the extremities of the leaves tinged violet, the leaves almost
vertically inserted and densely imbricated, not semi-vertioally and
loosely imbricated ; the lobes of the leaves of the young branches
are almost equal, not very unequal, and the cells smaller, with
large trigones. I t has much the habit of Jung, capifata, Hook.,
in its crowded upper leaves, bnt is dioicous. I t aiibrds a striking
examjjle of a transition fiom one species to another.
To distinguish J. ventricosa from allied dioicous ones is easy.
.lung, incisa has a lighter green colour, leaves almost transversely
inserted, upper leaves irregularly toothed. Jung, bantriensis and
its varietj' Muelleri, have stipules and different bracts and shaped
perianth. From Jung, alpestris, see notes under that species.
D escription op P late CXL.—Fig. 1. Plants natural size.
2. Fertile plant x 16 (Tunbridge Wells, Dr. Spruce). 3. Male
stem x 16 (C. & P. n. 171). 4. Leaf x 24 (Llanberis, W.H.P.).
5. Ditto (Cwm Bychan, E. M. Holmes). 6. Ditto (C. & P. n.
171). 7. Ditto (0. & P. n. 185). 8. Portion of leaf x 290
(Sussex, G. Davies). 9, 10. Bracts x 24 (Hastings, Bloomfield).
11. Braot X 16 (Isle of Man, Holt). 12. Young bract x 24
(G. & E. n. 185). 13. Bracteole x 85 (G. & E. 185). 14.
Pistillidium X 85 (ditto). 15. Perianth x 24 (Hastings,
Bloomfield). 16. Spores and elater x 290 (Sussex, G. Davies).
17. Perigonial bract x 24 (C. & P. n. 171). 18. Antheridium
X 85 (ditto). 19. Gemmse x 290 (Bingley, West).
D escription of P late CXLI.—Jungermania ventricosa, var.
porphjroleuca (N.).—Fig. 1. Leaves x 17 (After Gottsche, G. &
E. n. 288). 2, 3. Sub-braots x 17 (ditto). 4, 5. Bracts x 17
(ditto). 6, 7. Ditto (Sweden, Lindberg). 8. Perianth x 17
(After G. in G. & E. 288). Jungermania ventricosa, var. Whte-
headii {.Jung. IFhiteheadii, Pears. MSS). 9. Leal x 24 (Woodhead,
J. Whitehead). 10, 11. Sub-bracts x 24 (ditto). 12, 13.
Bracts x 24 (ditto).
20. Jungermania alpestris, Schleioh.
.Jungermania alpestris, Schleicher, Exsicc. 2 cent. n. 59 (1804 ?); Web. Prod.
p. 81 (1815).
Jungermania sudetica, Nees in Hueben. Hep. Germ. p. 142 (1884).
Jungermania Goepiertiana, Hueben. Hep. Germ. p. 254 (1834).
Cephalozia alpestris, Cogn. Hep. Belg. p. 85 (1872).
Dioicous, grovving in flat, closely entangled, often spreading
tufts, or straggling amongst mosses, small, from green, when
young, to reddish-yellow, brown or dark brown in colour. Stems
suberect, simple or furcately branched, brown, when old dark
brown, serpentine, flexuose, somewhat rig id ; radiculose, rooting
up to aqiex of stem, rootlets close, pale brown, often reddish or
reddish-purple. Leaves obliquely semi-vertically inserted, horizontal,
spreading or secund, sub-com|)lioate and semi-amplexicaul
near the apex of fertile stems, antical margin slightly deourrent,
imbricate or approximate, gemmiparous, roundish-ovate, ovate or
snbquadrate, concave, bidentate, sinus wide, very shallow to
deep), obtuse, segments unequal, acute or obtuse ; texture firm,
epidermis smooth, cells smallish, 4-, 5-, and 6-sided, roundish-
quadrate, trigones very small bnt distinct, marginal cells slightly
thickened and quadrate. No stipules. Bracts larger and broader
than the stem leaves, roundish, margin entire or slightly irregular,
bifid from ’ to i , sinus acute or obtuse, not so wide. Bracteole
simple, lingulate or rarely oblong and slightly retuse, connate
with the adjoining braot or rarely free. Perianth terminal, projecting
about 1 beyond the bracts, oblong or oval, smooth, slightly
obtusely folded near the apex, mouth obtusely complicate, margin