M a l e F r u c t i f i c a t i o n {(. 5 ) composed o f anthers (f. 6) , s itua ted in c luste rs o f two o r th re e a t th e
b ase o f th e cauline leaves, an d m o st commonly o f those th a t approach th e ex trem ity of
th e p lant. Tliey a re q uite exposed, as is th e case w ith those o f J . pusilla. E a ch is exactly
spherical, m in u te , consisting o f a n ex te rio r re ticula ted cutic le , a n d th e olivaceous pollen, which
is a t len g th discharged from a i-agged ap e rtu re a t th e extrem ity (f. 7 ). T h e fo o ts ta lk , wliich
is about th e len g th o f th e a n th e r, is white , pellucid, and transveraely stria ted .
F em a l e F r u c t if ic a t io n te rm in a l .
Calyx (f. f 2 .1 0 ) very la rg e , compared w ith th e size o f th e p lan t, full a line in len g th and
o n e -th ird o f a line in d iame te r, a little incurved, cylindrical th ro u g h o u t, o r slightly
inci-assated u pwa i'd: th e apex its e lf is depressed and flattened, so th a t th e extrem ity is
nearly a plane su rface, as wide as any p a r t o f th e calyx, a n d in th e c en tre o f i t is
s itu a ted th e m in u te , co ntra c ted, a n d slightly-tootlied m o u th . T h e whole is perfectly
d e s titu te o f fun-ows. Its color and texture a re n o t distinguishable from those o f th e
leaves, except th a t th e form e r occasionally vaiies to a rich brown, ap p e a rin g almost-as
i f i t were b u rn t.
Germen ( f 8) ovate, o f a yellowish-green color, tei-minated by a small hoUow style. A few
barren p is tilla su rro u n d its base;
O b s . T h e m ore forward s ta te o f th e fructification I have never h ad an o p p o rtu n ity o f seeing.
As well th e figures he re given, as th e d e sc ription, have be en made from Ge rman specimens
sent to Mr. T u rn e r hy Dr. S chrader and D r. Mo h r; an d I am induced to rep re s en t th e species in
tliis work, ra th e r w ith a view o f c alling th e a tte n tio n o f th e b o tan ists o f my c o u n try to wh a t I
conceive to be th e time Jungermannia lanceolata o f L innæus, th a n from a fu ll conviction o f its
ever h aving be en found in B rita in . Micheli is th e eaidiest a u th o r who has noticed th e p re sen t
p lan t, to which Dillenius’ t. 70. f. 10. has been re fe rred by L innæus and a lm o st eveiy subsequent
bo tan ist; b u t I have, un d e r th e description o f J . p umila, g iven my reasons fo r supposing th a t th is
synonym more probably belongs to th a t species. Ha lle r, in his Hist. Stirp . Helv. t . i ii. p. 61.
n . 1871, u n hisder Jungermannia fo liis p in n a tis, ovatis, confettis, ex apice f o r i f era, quotes Linnæus
as well as th e two o th e r authors j u s t a lluded to , b u t in his description he says, “ folia pauUiim
au ricu la ta e t in apice congesta, paulliimque incu rv a ” , and in an o th e r place “ ad Ju n g e rm an n iam
n. 20. Dillenii {J. albicantem) proximb accedit, sed differt foliis ro tu n d io rib u s”; so th a t I am ra th e r
induced to th in k t h a t th is g r e a t botan ist h as confounded th e p re s en t species w ith one th a t I propose
calling J. obtusifolia, which certainly approaches in many pa rticu la rs to J . albicans. Weis has th e
same rem a rk as Ha lle r, a n d i t is u n fo rtim a tè th a t n e ith e r o f them tak e any notice o f th e form o f th e
calyx. Schrader an d R o th a re m ore p a rtic u la r on th is p o in t, so th a t I c an q uote w ith confidence
th e ir descriptions, while th a t o f almost every o th e r a u th o r is a t least doubtful. Those g iven by
Hudson, Lig h tfo o t, and W ith e rin g , a re p a rticula rly u n sa tisfa c to ry ; a n d th e Jangernmîinia figured
u n d e r th e name o f lanceolata in English Botany is J . scalaris, a p la n t which I have observed in
coUeetions n o t u n frequently m istaken fo r i t ; a lthough th e species before us abundantly differ.s,
n o t only in th e absence o f stipule s, b u t in th e lai-ge and naked calyx.
In drying, as is we ll observed by Dr. Rotli, th e leaves become crisped ; b u t th ey rapidly
recover th e ir orig in a l figure on b e in g immersed in water.
R E F E R E N C E S T O T H E P L A T E .
1; Fertile p la n ts o f J . lanceolata, natural size.
A fe r tile p la n t, magnified ............................................................................................... 5
A barren p la n t, natural size.
The same, magnified ......................................................................................................... 5
Ex tremity o f a male p la n t .......................................................................................... 5
A n th e r in a perfect stale ............................................................................................... 1
The same a fte r the discharge o f the pollen ........................................................ 1
Pericheetial le a f ................................................................................................................... 4
Cauline le a f ........................................................................................................................ 3
Calyx dissected longitudinally ..................................................................................... 3
Germen ................................................................................................................................. 2