vittate, linear-lanceolate, narrow, about 3 times longer tlian broad,
to tbe middle or below acutely bilobed, lobes straight or divergent,
postical usually a little smaller, acuminate, entire, or rarely with
one or two small teeth at the base, margin often revolute, leaf
and segments channelled ; texture firm, epidermis rough, marginal
cells small, quadrate, pachydermous, middle elongate, about twice
as long as broad, margin of cells irregular, walls thick, angles
lliickened, near the base the elongate cells contain very delicate
spiral filaments. ¥ terminal, capitate, bracts several pairs, closely
imbricate, attached at their base to the perianth, ovate-lanceolate,
margin denticulate, divided to about the middle, sinus acute,
segments lanceolate, acuminate. Perianth projecting about a third
beyond the bracts, ovate-oblong, strongly plicate, composed of one
layer of cells, mouth laciniate, almost to the middle, laciniæ 8.
entire or sparsely denticulate. Calyptra small, orbicular, unicellular,
only somewhat thick near the base ; pistillidia about 20.
Capsule thick, composed of about 6 layers, inner layer with
numerous long, very narrow elaters attached to it. Spores large,
pale brown, elaters bispiral, reddish-brown, darker colour and
much shorter than those attached to the inner layer of capsule,
about half the breadth of the spores or less. Androecia terminal,
spicate, perigonial bracts about 12 pairs, closely imbrioate, erect,
ventricose at the base, oval-lanceolate, margin sparsely denticulate,
bilobed to below the middle, segments subulate-acuminate, antheridia
solitary, large, oval, bearers long.
D i m e n s i o n s . — Stems 1 to 4 inches long, sometimes shorter
and even longer, diam. '2 mm. A mm., with leaves 2’ mm. wide ;
leaves 1'25 mm. x '4 mm., segments 75 mm., 2' mm.x A mm.
seg. 1-2 mm., 2 ’ mm. x 7 mm., seg. 1’25 mm., lA mm. x 7 mm.
seg. 1- mm., 7 5 mm. x A mm. seg. '4 mm.; cells, middle of leaf
A5 mm. x A2 mm., A4 mm. x A2 mm., A35 mm. x A2 mm.,
marginal cells A2 mm. x A2 mm., A15 mm. x A15 min.; bracts
4' mm. x 1’5 mm., segments 2- mm. ; perianth 6' mm. x 1’5 mm. ;
calyptra 1'5 mm. x 1' mm. ; pistillidia A mm. x A5 mm. ; valve
of capsule 2'25 mm. x 1' mm. ; spores A3 mm. ; elaters free T
mm. X Al mm., T5 mm. x Al mm., attached elaters A mm. long ;
perigonial bract 2’ mm. x 75 mm., segments 1’25 mm.; antheridia
■275 mm. x ’175 mm., bearer ’275 mm. x '03 mm.
H ab.—Grows in dense tufts on exposed banks or crags in
alpine or subalpine situations. Moderately rare, but often growing
in great abundance where found. Extremely rare in fruit.
7, 12, 15, 16. I.
Found on the Continent and in North America. The large
form II. juniperina (Sw.) in the West Indies, South America,
Africa, Madagascar, Java, &o.
O b s .—This is a very distinct species and not likely to be confounded
with any other British hepatic. I t varies extremely in
size from an inch or so to 5 and even 6, and in colour from a
reddish to a dark brown.
Ilerherta juniperina (Sw.) is usually a more robust plant with
larger leaves, broader at the base, often more ventricose, margin
at the base distinctly dentate ; Hooker may probably be right in
considering II. adunca only a variety of it.
I have never seen male or female of II. adunca, so have described
and figured those of II. juniperina from Cuban specimens, which I
have little doubt will be similar or nearly so to those of II. adunca.
Herberta Sauteriana (Hüben.) (Herberta straminea, Dum.) has
been reported from Scotland, but all the specimens I have seen
under this name are to he referred to H. adunca.
Herberta Sauteriana (Hüben.), which is found on the Continent,
has a different habit, leaves close, shorter and broader, coarsely
dentate at the base, with segments shorter and broader.
D esokiption of P late XXXVI.—Fig. 1. Plants nat. size.
2. Portion of stem x 24 (Connor Hill, Ireland, Prof Lindberg).
3. Leaf x 24 (111 Bell, Troutbeck, Westmorland, G. Stabler).
4. Ditto X 24 (Connor Hill, Prof. Lindberg). 5. Ditto x 24
(Ben Laiogh, Scotland, G. A. Holt). 6. Ditto x 24 (Ben Eagh,
Eosshire, Jenner & Howie). 7, 8. Leaves x 24 (Clogwyii-d’ur-
Arddu, Snowdon, G. A. Holt). 9. Portion of leaf, middle x 290
(Connor Hill, Prof. Lindberg). 10. Ditto, margin x 290 (ditto).
11. Bract X 11 (Cuba, Wright). 12. Perianth x 11 (ditto).
13. Perigonial bract x 16 (ditto).