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iiii
From A. Stableri, see notes under that species.
D e s c r ip t io n o f P late CCXXVI.—Fig. i. Fertile plant
natural size. 2. D itto x . 3. Cross-section of frond x 16.
4. 5. Calyptra x 11. 6. Cross-seotion of calyptra x 11.
7. Eipe capsule opened x . 8. Male plant natural size.
9. Portion of male plant x 1 1 .
2. Anthoceros punctatus, Z.
Anthoasros pimctatus, Linn. Sp. pl. 1G06 (1753).
Monoicous, cæspitose, small to medium size, bright pale green
in colour. Pronds in layers, thin, subimbricate, spreading in a
circular manner, centre depressed and concave, lobes suberect,
somewhat dichotomous, oblong and obtuse, without any distinct
midrib, if present confluent and confused with both sides of the
frond, more or less deeply sinuate,pinnatiiid or laciniate, crisped;
cross-seotion of frond shows about 2 to 3 layers of cells, rarely 5
to 6 ; texture delicate, glandular, reticulate ; cells lax, epidermic
layer 4-, 5-, and 6-angled, chlorophyllose, chlorophyl granules,
large, angular; walls thin ; stomata distinct; small remote scales-
scattered over the frond ; radiculose, rootlets pale dirty brown,
arising from base or centre of frond. Calyptra antical, lowei-
half 4 to 6 cells thick, inner layer of cells very minute,
others irregular in size with very thin walls, oblong-linear,’
slightly repand, when young closed at the top, and later rup-’
tured by the protruding capsule, leaving an irregular lacerate
opening, parts of which are torn away or remain adhering
as soariose rudiments. Capsule pedunculate, exserted, very long,
black, pod-like, filiform, arising like blades of grass, tipped witli
a veil when young, bursting when ripe into 2 valves with a
parallel partition. Spores black, strongly echinate, angular, on the
convex side beset with blunt prickles, single or 2 and 3 together ;
on the other two sides irregularly verrucose. Elaters brownish-
black, short and broad, flattish, geniculate, variously contorted.
ANTHOCEROS. 501
Androecia imbedded irregularly in the frond; antheridia pale
brown, oval, stipitate, stipes 4 cells long by 2 cells thick, 8-10 in
each cavity.
D im e n s io n s .—Fronds J to J inch long and broad, "2 mm. to
•3 mm. thick at the middle ; capsule about 1 inch long ; spores
•05 mm. ; elaters -125 mm. x -015 mm. ; antheridia -125 mm. x
•1 mm.
H ab.— In damp fallow fields and on ditch hanks, &c. Somewhat
rare.
1. West Cornwall, rather common, JF. Curmto ; Sidmouth,
South Devon, Mrs. EU a M. Timlall ; Somerset, T. Britt aid.
3. Kent, Billenins. 5. Little Fenton, Staffordshire, B. Garner.
7. Very finely in Corsygedol Woods, Barmouth, Merionethshire,
Bev. T. Salweg ; Dolgelly, Merionethshire, C. J. JFild. 8. Loughborough,
Leicestershire, Pnlieney; Ditch near Twycross, Leicestershire,
Bei'. A. Bloxam. 10. 13. New Quay, Kirkcudbrightshire,
J. Craickshank. 16. Eare ; at the side of ditches, Moidart, West
Inverness, fruit Oct., V M. Macvicar. 17a . Caithness, Bev.
B. Lillie.
I. Frequent in the counties of Kerry and Cork, Br. B. Moore.
Mount Brandon, JF. JFihon, 1829; Maghanabo Glen, H. i/c /rrffy
1875, F. JF. Moore fl B. McArdle, 1881, 1897; near Brandon
Head, Zeti & McArdle; Glendoon, Co. Antrim; Kelly’s Glen,
Co. Dublin, Br. B. Moore ; Sugar Loaf Mountain, Co. Wicklow’
Br. E. P. JFriy/U.
Found on the Continent and in North America.
Obs.—See notes under Anthoceros Joevis how to distinguish it
from that species.
One of the most important contributions to our knowledge of
this genus is Prof. Howe’s Monograph on the Hepaticæ and
Anthocerotes of California (“ Memoirs of the Torrey Botanical
Club,” vol. vii. 1899).
D e s c r ip t io n or P la t e CCXXVII.—Fig. 1. Plant natural
size. 2. Plant x . 3. Ditto. 4. Cross-section of frond x 16
(Somerset, T. Brittain). 5. Cells x (Sidmouth, Tindall).
6. Calyptra x 16 (Somerset, Brittain). 7. Cross-seotion of