5. Aneura sin u a ta (I)ichs)i, Dum, p.p.
Lichenastruvi chmnædryos multifidoe divisura, Dill. Hist. Musc. pp. 5 1 1 , t. 74,
f. 1 4 b ( n o t f . 4 4 a ) ( 1 7 4 1 ) .
Jungermcmia sinuata, Dicks. Pl. crypt. B rit. fasc. 2, p. 16 (1790).
Jungermania multifida, var. sinuata, Hook. Brit. Ju n g . t. 45, f. 2 (1816).
Aneura sinuctta, Dum. Comm. Bot. p. 115 (1822).
Â7ieura ¡nnnatifida, N. Carr. Irish Crypt. p. (1863), and o£ many others.
liiccccrdia multifida, var. major, Lindb. Hep. Hibern. (1875)?
Riccardia latifrons (Lindb.), var. sinuata (Dicks.), Lindb. Musc. Scand. p. 5
(1879); Kaalaas Leverm. JSforge, p. 213 (1893).
Monoicous, growing in flat spreading patches, medium size,
pale green in colour. Frônds prostrate, imbricating, flat, irregularly
divided, branches irregularly pinnate or bipinnate ; thin, the
whole breadth almost equal in thickness ; cross-seotion linear ;
cells oblong-rhomboid. Female flowers lateral; braots ■ very
short. Calyptra oblong, clavate, smooth. Capsule oblong, dark
brown ; spores pale brown, same size as the thickest portion of
the elaters ; elaters unispiral, reddish-brown. Androecia lateral,
situated near the female flower, ohlong-oval ; antheridia oval,
8-10 in two rows, imbedded in the male catkin.
Pruits in Spring. .
D i m e n s i o n s . — Stems 1 to inch long, 2‘ mm. broad,
■2 mm, thick, branches A m m .-l’5 mm. broad; calyptra 3' mm.
X '8 mm. ; capsule 1’ mm. x A mm. ; spores '02 mm.; elaters
•4 mm, X ’02 mm. ; androecia '8 mm. x '4 mm.
H a b .—On wet dripping perpendicular rocks in shady situations.
Rare.
7. Arthog, Dolgelly, Tyn-y-Groes, Merionethshire, Dr.
Can-ington fl JF. H. P. 12. Borrowdale, Cumberland, JF. Ii. P.
Isle of man, G. A. Holt.
I. Killarney, Cromaglown, Toro Cascade, Dr. Carrington and
others.
O bs.—Distinguished from Aneura multifida (L.) and Aneura
latifrons Lindb. by its larger size, thinner fronds . and smooth
calyptra.
I t is a somewhat rare species, and, so far as I know, is only
found on wet dripping perpendicular rocks, frequently growing
with Juhula Huteliinsice.
Dr. Sohiffner JhiX Aneura pinnatifida, Nees, is quite a
different species.
D e s c r ip t io n o p P la t e CCIII.—Pig. 1. Plants nat. size.
2. Portion of frond magnified. (Isle of Man, Holt). 3, 4. Cross-
section of frond x 16 (ditto). 5. Male catkin and young female
flower X 24 (Arthog, W. H. P.). 6. Calyptra x 16 (ditto).
7. Capsule x 16 (ditto).
G. A neura pinguis ( / . ) , Bum.
Marsilea media p inguis, pallide. virens, florihus nigrieantibus, ad foliorum latera
egredientibus, Mich. Nov. pi. gen. p. 5, tab. 4, f. 2 (1729).
Lichenastnim eapitulis oUongis ; ju x ta foliorum divisuras enascentibus, Dill. H ist.
Mnsc. p. 509, tab. 74, fig. 42 (1741).
./ungermania pinguis, Linn. Sp. pi. p. 1136 (1753); Hook. Brit. Ju n g . t. 46
(1816).
Aneura pinguis, Dum. Comm. Bot. p. 115 (1822).
Riccardius pinguis. Gray & Benn. N a t. A rr. Brit. PI. 1, p. 684 (1821).
Dioicous, cæspitose. or creeping among mosses, of medium
size, dark green in colour, turning pale yellowish-green when dry.
Pronds decumbent, often imbricate, simple or lobate, oblong
sinuate, plane or concave, apex rounded and obtuse, margin
somewhat undulate; texture succulent, fleshy, opaque, rigid when
dry ; 6 to 8 cells thick near the middle, 1 to 2 near the margin,
withont nerve ; cells 4-, 5-sided, interior ones hyaline, walls
firm, no trigones ; radiculose, rootlets few, minute, short, close,
yellowish-white, some fronds rootless. Female flowers proceeding
I'rom the postical side near the margin ; bracts short, subhemis-
pherical, fimbriate. Calyptra linear-oblong, cylindrical, smooth,
nearly the same thickness throughout, straight or slightly waved
and curved, mouth a little uneven ; pistillidia 7 or 8, small, ovate.
Capsule ohlong-oval, reddish-brown, striate or furrowed, 4-valved,
inner layer of cells with 20 to 30 rows of spiral threads, base of
capsule (apex of pedicel) composed of 8 x 8 large brown cells ;
spores spherical, brown, muriculate, twice the diameter of the