1 numbe r, len g th , and situa tion, being all on th e same-
mple, b u t sometimes ag a in beset w ith : mostly i a few short, simple
as uncertain as
plane ; these ?
ramuli.
Leaves (f. f. 3. 4 ) ra th e r closely imbricated (a t least in a ) over th e whole uppe r
side o f th e stem , bifarious, somewhat two-lobed, having th e up p e r lobe by fa r th e
la rge st, and th e sixth, o r sometimes even th e fourth o f a line lo n g , h orizonta l, ovate,
very slightly convex above, the base beneath ventricose, where th e le sse r lobe arises,
which, perhaps, m ig h t with more pro p rie ty , be called a dilated and remarkably in voluted
portion o f the ma rgin : taken a lto g e th e r, th e le a f very correctly resembles a
specimen o f th e Helix auricularis, by which comparison its figure will be b e tte r
understood, th an could be th e case by means o f w ords. T h e texture is delicate; th e cellules
la rge , roundish. T h e color a pale yellow-green.
Perigonial leaves (which I had n ot seen till i t was too la te for them to be represented
on the plate) closely imbricated u})on sh o rt ramuli, fo n n in g ovate compact masses, like
those o f J . platyphylla. They a re ventricose a t th e base, b u t th e lobule is less involute
than th a t o f the cauline leaves.
Perichælial leaves (f. f. 6. 13. 13) o f quite a different figure from any o f th e re st, being
much la rg e r, and divided deeply in to two oblongo-ovate obtuse and slightly convex
lobes, which closely embrace th e calyx : th e up p e r one is about thric e th e size o f
th e lower.
Stipules (f. .5) roundish, plane> cleft above a th ird o f th e ir len g th in to two sharp and
equal segments, whose sinus is ra th e r a cu te , extending about o n e -th ird o f th e lengtli
o f th e stipule.
M a le F r u c t if ic a t io n : a single A nthe r is situated in th e axilla o f each perigonial leaf. I t
is reticulated, spherical, and te rm ina te s a sh o rt, white , transversely strlhted footstalk.
F emal e F r u c t if ic a t io n la te ra l and axillary.
Calyx (f. 6) about twice th e len g th o f th e leaves, widely obovate, a t th e base cylindric
a l, thence gi-a<lually becoming o f a lai'ger diam e te r towards th e extrem ity , furnished
thro u g h o u t its whole le n g th w ith five longitudinal sh a rp angles. T h e mouth small and
p ro tru d in g into a short tube.
Calyplra (f. f. 7- S) extremely th in and delicate, so th a t th e young capsule may be seen
within it. T h e reticulation is la rg e , and th e areolæ ob lo n g ; th e style, w ith which it
is te rmina ted, is long, tu b u la r, and slightly expanded a t th e mouth.
Peduncle about twice th e len g th o f th e calyx, wholly composed o f a num b e r o f parallel
tube s, all o f equal length, which are placed in d is tin c t bundles, so th a t by th e te r m
in a tio n o f th e several pai'cels, are fonned d is tin c t transverse lines, dividing th e footstalk
in to several joints. In a dry s ta te , the se jo in ts a re b en t with m uch regula rity to th e
rig lit and le ft alte rna te ly, and give th e peduncle a zigz ag appearance.
Capsule (f. 9) perfectly spherical, white , beautifully ma rked with la rg e and roundish
reticulations ; so tran sp a ren t, th a t the green seeds may be seen thi'ough it , and th e
extreme edge forms round these a wliite ring o r liinbus. I t opens in to four equal
valves, which, extend only h a lf its len g ih (f. 9 ) , and always preserve th e ir vertical
d irection, never becoming reflexed, or even pa ten t.
The spiral filaments (f. f. 9. 10) are composed o f a double helix, slightly twisted, e n closed
w ithin a la rg e semipellucid tube, much expanded a t th e mouth. T h e seeds
(f. 11) are few in numbe r, la rge , oblong, somevKbat ang u la r, o f a dark g re en color.
R E F E R E N C E S T O T H E P L A T E .
FIG.
1. J . stipulacea, natural size.
2 . 3. L ate ral views o f the same, _ _
4. Under side o f d itto ............................................................................................................... ®
5. Fructified p lant o f d itto .....................................................................................................
6. Portion o f the stem w ith iis leaves and stipules ..................................................... 4
7. Perichatlal l e a f .........................................................................................................................
8. Stipules .......................................................................................................................................
9 . Calyx .............................................................................................................................................
10. Calyx longitudinally opened to shew the Calyptra ................................................... 4
11. Seeds and, spiral filaments ................................................................................................. ^