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H a b .— Broken sandy ground and banks in subalpine districts ; not uncommon.
Fr. 9— I I .
Dunkeld [Borrer). Rescobie and Loch Lomond [Gardiner)] ! Inverness and Helvellyn
[GreviUe)] Pont Aberglaslyn (Wilson) ! ! Repton rocks, Derby (P/irt7i«s 1862). Sale
and Alderly edge [Wilson) ! ! Dunoon [Hunt 1865). Abernethy, Perth [Howie] ! Todmorden
and Hebden Valley [Hunt 1867)! Ashdown Forest [Davies)! Dartmoor
[Holmes). Cheviots [Hardy). Ireland [Moore).
The peristome in this moss is very variable, and led the early bryologists
to separate it into two species, their Weissia heteremalla having the legs of the
teeth united ; in other forms they are more or less joined by transverse bars.
Var. ¡3. zonatum [Funck) Lindh.
Stems elongated, dichotomous, sparingly branched, in very dense tufts,
i — 2 in. high, pale brown and rufescent below, deep green above. Leaves
shorter, nearly straight, erecto-patent, appressed when d r y ; seta and capsule
shorter.
S y n .— Weissia zonata F u n c k . B r id . Bry. univ. i, 364. »
Lcptotrichum nivale C . M u e l l . S y n . ii, 6 i i ,
Lcptotr. Molcndianum L o r e n t z MSS. D e N o t . Epil. Bri. ital. 517.
Lcptotr. zonatum L o r e n t z Verb. Zool. bot. Ges. Wien. 1S 6 7 , p . 683, t. 22.
Lcptotr. tcnneVar. (^. glaciate S c h im p . Syn. 142.
Lcptotr. vaginans Var. JS. glaciate S c h im p . Syn. 2 ed. 140.
H.4B.— Mountain rocks.
Above Ffynon frech, Snowdon [Wilson 182S). Glen Callater [Fergusson i868)! 1 Cloughna
ben [Sim 1S69)! Ben Lawers [West 1880)!! Snowdon [Nuttall 1879)!
Differing greatly in aspect from the typical state, but the leaves agree
exactly in structure, even to the apical crenulations. Always barren in
Britain.
4. DITRICHUM SUBULATUM. {Bruch) Hampe.
P a ro ic o u s ; slender, short, tu f t e d ; lea ves p a tent o r secund, ovate
a t base, suddenly subulate, entire. Capsule oval, e r e c t ; lid conic with
a short beak. (T. X IV , H.)
S y n .— Trichostomum subulatum B r u c h in S a l zm . PI. Tingit. (1825). B r . S c h . Bry. eur. fasc.
18-20, p. 17, t. 131(1843). W i l s . Bry. Brit. 117, t. 42 (1855).
Didymodon aureus D e N o t . Spicil. 12 (1837) ; Syll. musc. n. 266 (1838).
Lcptotrichum subulatum H a m p e in Linnasa 1847. M u e l l . Syn. i, 448 (1849). S c h im p .
Synops. 145 (i860), et 2 ed. 143 (1876). B e r k . Handb. Br. m. 263 (1863). De N o t .
Epil. Briol. ital. 514 (1869).
P a ro ic o u s ; slender, in lax, b r igh t silky, yellow-green tu f t s ; stem
simple, naked a t base. L e a v e s p a ten t or secund, stra ight when dry,
lower small, lan ceolate, upper from an ovate base, su b u la te ; nerve
broad, e x c u r r e n t ; ce lls firm, elongate quadrate. Capsule on a purple
seta, leptodermous, ov ate, e re c t, golden b row n ; annulus in d is tin c t; lid
convex con ic , sh ortly ro s te lla te ; teeth bifid, red, v ery slender, scabrous.
Antheridia in pairs with paraphyses, in the a xils o f the upper lea ves.
H ab.— On crumbling rocks of clay-slate; very rare. Fr. 3— 4.
Trethowell near Truro (Tozer, refound by Mr. Tellam iSyt) ! ! Saltash (Broit 1867) ! !
A Mediterranean species which like several other plants of that region
reaches the Cornish shore. Another fine species L . pallidum has not yet been
added to our list.
5. DITRICHUII FLEXICATJLE [Schleich.) Hampe.
D io ico u s ; tall, slender, densely tu fte d ; stems branched, flexuose,
radiculose ; lea ves secund, lanceolate a t base, longly subulate, d enticulate
at margin. Capsule erect, ov a te -o blong ; lid conic, ros te llate .
(T. X V , A.)
Syn.— Didymodon flexicaule S c h l e c h . PI, cr. helv. Cent, 4, n. g (1807). R o e h l . Deutsch. Fl.
iii, 56 {1813). B r id . Mant. musc. 100 (i8ig) ; Bry. univ, i, 506 (1826). H u e b e n . M usc .
germ. 280 (1833). D e N o t . Syll. musc. n. 264 {1838), H a r tm . Skand. Fl. 275.
Cynodontium flexicaule S c h w a e o r . Suppl. I, P. I. 113. t. 29 {1811). F u n c k Moost. 20, t.
14 (1821).
Trichostomum flexic. B r . S c h . Bry. eur. fasc. 18-20, p. 15, t. 11 (1843). W i l s . Bry. Brit.
I I 5, t. 42 (1855). H u s n . M o u s s . nord-ouest 72 (1873). H o b k . Syn. Br. m. 62 (1873).
Lcptotrichum flexic. H am p e in Linn. 1847. C. M u e l l . Synops. i, 449 {1849). J e n s . Bry.
dan. 101 (1856). S ch im p . Syn. 144 (i860), et 2 ed. 142 (1876). B e r k . Handb. Br. m.
262 (1863). M i l d e Bry. siles. 137 (1869). D e N o t . Epil. Briol. ital. 514 (i86g). Fl.
Dan. t. 2688, f. 2.
D io ic o u s ; I— 4 in. high, in dense soft yellow-green, glossy tufts,
fuscescent b e lo w ; stems slender, geniculate, flexuose, branched, very
fragile, with abundance o f fine radic les. L e a v e s ra ther lax, secund,
subfalcate, lan ceolate, longly subulate, flexuose when d r y ; nerve
flattened, excurrent in the subula, denticulate at a p e x ; cells short,
e llip t ic a l; perich. b ra cts broader and sheathing. Capsule on a slender
reddish seta, e re c t, rufous brown, ovate or ellip tic , small, leptodermous,
slightly u n eq u a l; annulus broad, com pou n d ; lid conic, elongated ; teeth
o f per. red, filiform, unequal, fragile and fugacious.
Male plants slender in distinct tufts, r a r e ; b ra c ts ovate, subulate,
the innermost nerveless.
H ab.— L imestone rocks and s ton y ground ; not uncommon. F r . 6.
Sometimes near the sea, as on Southport sands: sands at St. Minver, Cornwall [Tellam
1871); Portmarnock sands, Ireland. Fruit not found in Britain.
Var. /?. densuni (Br. Sch.)
Compactly tufted ; stems straight, shorter and less branched. Leaves
erect, shorter, straight.
S y n .— B r . S c h . Bry. Eur. S c h im p . Synops. 14 5, et 2 ed. 14 3. W i l s . Bry. Brit. 1 16 .
F I a b .— More mountainous districts.
Ben Lawers (Dr. Stirton). Chee-dale and Miller’s-dale (West) ! ! Helsington Barrows,
Westmoreland (Barnes) ! ! Malham moor (Hobkirk 1879)! !
This very pretty moss varies greatly in size, and except in the Jura
mountains is everywhere rare in fruit.