I i ■
O bs.—Distinguished from all oihñY Scapania (except Ä aspcra,
M. & B., which see) by the leaves and perianth being minutely
verruculose, in addition to other characters.
The best method to observe this feature is to detach a leaf and
bend it between the slide and cover glass in water ; with a \ inch,
numerous minute warts are observed on the surface of each cell.
Its neat habit, regular leaves, not deeply divided, with the dense
cells, separate it from allied species.
From an exhaustive study of every specimen I have had the
opportunity of examining, I am only able to give the few stations
above recorded for this species, all the others I have to refer to
Scapania aspcra, M. et Bern. ; the type seems to be better represented
in the male stems, which are more regular and neater in habit.
D escription of P l.ite LXXXIII.— Fig. 1. Plant natural size.
2. Portion of stem, antical view x 16 (Moidart, Macvicar).
3. Leaves x 16 (ditto). 4, 5. Leaves x 24 (Winch Bridge,
B. Spruce). 6. Portion of leaf x 290 (ditto). 7. Bract,
explánate x 16 (Austria, Jack). 8. Portion of stem with
perianth x 16 (ditto). 9. Portion of mouth of perianth x 85
(ditto). 10. Perigonial bracts x 16 (404 G. & R.). 11. Antheridium
X 85 (ditto).
5. Scapania aspera, Muller fl Bernet.
Scapania aspera, M. ifc B., H en ri Bernet, Catalogue Hep. du Sud-Ouest de la
Suisse e t de la Haute-Savoie (1888).
E.XSÍCC. G, cfe R. Hep. Bur. n. 02 (as Scapania nemorosa), n. 3;Î4 (as Scapania
nemorosa), n. C02 (as Scapania cequiloha fo rm a dentata). Massai. Hep. I t .Ven.
11. 62 (as Scapania mquiloha, var. dentata).
Dioicous, loosely depresso-cæspitose, of a reddish- or olive-brown
colour. Stems tallish, simple or slightly branched, firm, blackish,
recurved at the apex, denudate at the base ; radiculose, rootlets
few, whitish. Leaves transversely inserted, somewhat smaller and
distant below, contiguous or imbricate above, subseound, unequally
bilobed to about the middle, margin ciliate-dentate ; postical lobe
more distinctly ciliate, about 25 cilia around the margin ; antical
lobe with rather more distant teeth or cilia ; about lialf the size of
the postical, convex, oval-triangular, rotundate, appressed to the
stem, or upper margin slightly reflexed ; postical lobe oval-oblong,
rotundate, reflexed ; texture somewhat firm, epidermis verruculose,
several minute papillæ on each cell ; cells small to rather minute,
subquadrate, walls thick, angles thickened, no trigones. Bracts
rather larger than the upper leaves, lobes more equal, antioal lobe
rotundate. Perianth projecting half beyond the bracts, compressed,
mouth wide, truncate, spinose-ciliate. Male stems more
slender, perigonial bracts enclosing leafy paraphyses with the
antheridia. Sometimes gemmiparous.
Fruits April, May, June.
D imensions.—Stems 1 to 2 inches long, '5 mm. diam., with
leaves 5’ mm. wide; branches '25 mm. diam., with leaves
2'75 mm. wide; leaves, antioal lobe 1'5 mm. x 1’ mm. ; postical
lobe 2'5 mm. x 1-75 mm., antical 1’5 mm. x 1' mm., postical
2'5 mm. x 1-5 mm., antical 175 mm. x 1'25 mm., postical
2-25 mm. x 1-25 mm. ; cells '02 mm., '0175 mm. ; cilia of postical
lobe -05 mm.; bracts, antical lobe 2' mm. x 1'5 mm., postical
2'5 mm. x 1'5 mm. ; perianth 3’5 mm. x 2' mm. wide at the mouth,
laciniæ of the mouth '275 mm., cilia of the same T mm.
H a b .—Growing on limestone rocks. Somewhat rare. 2 . Hill
above Studland, Dorset, E. M. Holmes, 26th April 1884. 7. Near
Aher, Carnarvonshire, Cf. E. Hunt, May 1868 (Herb. Spruce).
Tower Hill, Abergele, Denbighshire, W. H. P., August 1892.
Llandulas, Denbighshire, W. H. P., 1899. 9. Locally abundant
on limestone rocks in Lane. Silverdale, / . J . Wheldon, July 1898.
Over Kellet, A. Wilson. 10. Bolton Woods, Yorkshire, Dr. Carrington,
July 1877. 12. Yewbarrow, Westmorland, George Stabler,
Nov. 1869. 16. Moidart, West Inverness, S. M. Macvicar, 1899.
Roshven, West Inverness, S. Al. Macvicar, 1899.
I. Hill of Howth ; Co. Cavan ; Killarney ; vide D. AIcArdle.
Found on the Continent (Sweden, Norway, Switzerland,
Germany, Austria, Italy).
O b s .—-In habit and general appearance similar to Scapania
nemorosa (L.), but in this latter species the leaves, both antical
and postical lobes, are usually rounder and margin ciliate or more