1:
JU N G E RM A N N IA M A C K A II.
(TAB. L i n . )
J u n g e rm a n n ia , surculo repente, vagè ramoso : foliis distichis, imbricatis, bilobis ; lobis iniequaUbus j .
superioribus ma joribus, ro tu n d a tis ; inferioribus m in u tis , involutis: stipulis magnis, rotundatis,
obcordatis: fiu c tu ]a,terali te rm in a liq u e ; calycibus obcordatis, depressis, trian g u la rib u s; ore
contracto, elevato, dentato.
H ab. Sent to m e , Jan u a ry , 1 3 1 2 , by Mr. Mackay j \vho observed th a t he had known th e
p lan t to grow a t th e D a rgle , for several years, and th a t it is n o t unfrequently mixed with
J . serpyllifolia.—On wood, stones, and stems o f h e a th , about Ballylicky, n e a r Bantry.
Miss Hutchins.—I*owdore. Mr. Lyell.— Upon rocks a t Cheddar, Somersetshire, p lentiful;,
and on th e rocky sides o f th e chasms and vallies in the neighborhood o f Torquay ; and,
indeed, in similar situations th ro u g h o u t th e Lime -stone country, in th a t p a rt o f Devon.
I t occurs m ore rarely upon schistus, ne a r th e w a te r-fa ll a t th e Devil’s Bridge, Lidford.—
Mr. Lyell finds i t a t Mount Edgecombe.— Sometimes it is attached to trees.— (In February
an d March, th e fru it, both male and female, is produced in Devonshire.— In Ire land,
Miss Hutchins finds capsules in November.)
P l a n t g r o w i n g in d e n s e , b la c k is h -g r e e n p a tc h e s o f v a rio u s d im e n s io n s , f rom o n e o r tw o in c h e s
to a s m a n y fe e t in d iam e te r .
Roots issuing from th e lower surface o f th e stem , and immediately below th e stipules, in
small bundles, which consist o f short, pellhcid, fibres.
Stems creeping over each o th e r in successive layers, and closely appressed to th e surface
upo n which they grow : each individual is from ha lf an inch to an inch and a h a lf in
len g th , slender, filiform, flexuose, once or twice branched in an irregula r, though
somewhat p in na ted, manner, th e branches very variable in len g th : the substance is rather
opaque ; th e cellules sufficiently a p p a ren t; th e c o k r a d irty g re en, approaching to brown.
Leaves ra th e r closely imbricated in two rows over th e whole uppe r surface of th e stem,
horizontid, divided into two very unequally-sized lobes, o f w hich th e la rg e st is about four
ten th s o f a line in len g th , smaller as they approach th e apex o f the barren stem , th o u g h
th e reverse is th e case in th e fertile ones; o f a roundish figure, slightly convex above;
th e lesser one is scarcely one ten th o f its size, involute, and ventricose (f. 4 ) : the texture
is somewhat firm, th e reticulation (as in th e calyx represented a t fig. 9) formed, by