tlie leaves are more distantly placed, very small, and very unequally lobed. T h e texture
i.s rigid, especially in a dry s ta te ; the cellules small, roundish. T h e color a yellow-
green, much inclining to olive oi' brown.
Perigonial leaves, more concave than the re st, and even ventricose a t th e b a se ; b u t in otlier
respects like th em ; in general, they are only seen n e a r th e extrem ity o f th e stem.
Perichceiial leaves (f. 6) large, roundisli, dii'ided into two, or, n ot unfrequently, thre e ,
acute lolies o r segments. When only two s egm en ts, I have observed a small lobe
towards the base; probably th e rudiment o f a la rg e r one. T h e ir color is p a le r tlian
th a t o f th e cauline leai'es, and th ey are o f a more delicate texture.
M a l e F h u c t if ic a t io x V. Anthers, situated in the a x illæ o f th e p e r ig o n ia l leaves , tw o o r three
in each, sp h erical, re tic u la te d ; the fo otstalks sh o r t, w'hite, tra nsve rs e ly striated.
F em a l e F a u c Tm cA T iO N te n n in a l .
Cahjx, a t first globose (f. 7 ) . and wholly concealed by th e perichætial le av e s; a t len g th
b e coming obovate, oi' even obovato-ofalong, th re e -fourths o f a line long, a little jilicate
above; the m o u th contracted, and fringed w ith very m inute teeth.
Peduncle ha lf an inch long, white, cellulose.
Capsule oblongo-ovate, o f a reddish brown color, s tria ted longitudinally and ti'ansversely,
and ojicning into four, equal, lineari-lanceolate vahe s.
Seeds and spiral Jilaments fulvous brown, th e former o f a spherical fo n n , smooth; the
la tte r composed o f two sh o rt and closely tw isted helices.
O rs. At Isla, on th e 2 1 s t o f July, Mr. Lyell discovered Gemma: upon this species, hearing
a considerable similarity to those o f J . infiata, (as repre sented by Schmidel) and those o f J . excisa;
b ut fa r less compact th a n th e la tte r, and more confined to th e te rm ina l leaves than appears
to be the case w-ith tlie former. They a re o f a red color, min u te , ang u la r, pellucid, presenting
no internal organization, collected into small, though by no means compact balls, a t the ajiex
o f each lobe o f the leaf.
T h e Dillenian plants which came from Greenland, and are preserved in th e Horbarium a t
Oxford, tliough exactly agre e ing w ith th e specimens he re figured, as well as with others which
h a ie been given me by Mr. Dickson, are, nei'ertheless, very unlike th e figure and descrijition in the
n isioria Muscorum, imd, indeed, so m uch so, th a t it seems scai'cely possible th a t these la tle r
could have been made from those individuals. T h e fructification o f J . minuta was entirely u nknown,
till detected by Miss H u tchins and Dr. Taylor, in Ire lan d , and, subsequently, in Scotland, by
]\lr. Lyell, who, alone, has found both anthers an d capsules.
T h is is an elegant and extremely well defined species, and has a peculiarly neat ajipearance,
from th e circumstance o f th e leaves be ing most regula rly disposed, all placed in a nearly hori'/.ontal
direction, and, as it were, in a pinnated manner. In color, it nearly approaches some o f the
sta te s o f J . infiata; an»l some o f th e leaves be a r a considerable affinity with th a t species, b u t
they have ttic sides always coniluplicate, and th e points more acute. Tlie lower leaves, being
o f th e same n a tura l familv, agreeing w ith it in th e sin g u la r stru c tu re of th e capsule, seeds,
a n d filaments, still, th e form o f the leaves is so different, th a t no difficulty will be found in
distin g u ish in g th e two plants.
Although I have called the little spherical bodies, observable upon th e stems, Gemmce, 1
to rema rk, th a t they are quite o f a dilferent n a tu re from those m inute particles, (to
which I have given the same nome) th a t are produced upon the extremities o t th e stems or
leaves o t M c i p M a , J . eae c ia , J . » n iric e so , &c.; these having no appa rent inte rna l organization.
while th e former a re composed o f cellules as la rg e as those of th e leaf. Similar Gemmæ
( i t such they may be called) a re found on J . m n u liis im a and J . h cm a tifih a , and, probably,
•vlso (though I have n ot ye t been so fortuna te as to meet w ith th em ) upon J . ¡erpyltifoha.
R E F E R E N C E S T O T H E P L A T E .
FIG.
1 . J . calyptrifoUa, about twice* the natural size.
2 . A single p la n t, magnified .....................................................................................................
3 . P o r tio n o f a s tem , a n d a le a f ........................................................................................................
4. A leaf, with the lobule in its natural position ............................................................... 3
5 . T h e sam e , w i th th e lo b u le e xp a n d e d .............................................................................................. 3
6. S tip u le ............................................................................................................................................ ^
7 . Gemmce................................................................-.......................................................................... ^
S. Calyx ............................................................................................................................................. ^
9- Pericheetial leaves .....................................................................................................................
10. Calyptra, inclosing its c a p s u le ............................................................................................
11. A n old C a ly p tr a .........................................................................................................................
12. C a p su le w i th its tu b e s , w h ic h c o n ta in th e s p ir a l fila m e n ts .......................................... 1
13. Seeds..................................................................................................................................................
. The Ssure here referred ro, i. repre.en.ed I.,s=r ,h .n n .tu r e ; h .e .u se , to h .ve done o t h e r , « , rhe m i.u .e n e»
o t the plant would h .ve p.evented it. appe.rinS otherwise ehu, as a small, £reen, sh .p .le s. mas,.