8 j
O h f . Eadem eft compofitio et ftriuSlura partium intcnianim in Apothecio Le c i -
d c a e p l a t y c a r p a c et R o c c c l l a c t i ndt or i ae . Ctr. T . 3. F .5 . A B. ct T a b ,7,
Fig. 8- A . C.
F ig . 6. A. L e ca n o ra e fu h fu f c a e apothecium ad pcrpendiculum diíTeélum. m. a.
a. Lamina difcoidea crafliufcula in omni aetate tumidula , marginem thallodcm
(b b.) aequans vcl parum fuperans.
B. Hujus Laminae pars magnopere au£ia, ut vidcantur in parenchymate ftriae illae
omnium tenuiflìmae ct ce llula re s , quibus intcrfperfi flint gongyli minuiiflìmi nidii-
lantcs nudi.
Pig. 7 . A. L e can o ra e g e lid a e apothecium codem modo rcfcdVura, m. a.
a. Lamina difcoidea crafilffima Icntifonnis.
b. b. M od u s , quo apothecium externe e fubftantia corticali thalli replicata forma,
tu r , laminam cxcipit ct fovet.
B. Laminae difcoidcae f. proligcrae pars , maxime atidìa, ut vidcantur gongyli minuti
in parenchymate (a) nidulantes fparfi, vcl in malTulas fubrotundas c t inde obfcurius
coloratas congcfti.
b. Particula fubftantiae corticalis th a lli, marginem thallodera veftiettiis, ,
G E N U S X X L
R O C C E L L A .
C h a i - a c l e r N a t u r a l i s .
A p o t h e c i u m orbiculatum craffimi feffile totum thal lo adnatum ah eo fonnatum et
ma r g in a tum, margine thallode f c i l l l i , di fco p i a n o - c o n v e x o .
Lamina proligera di fcum apothecii f o rma n s , in ambitu margine thaUode, c am
n o n fope rante , demum evane fc eii re, cincha, membranula (I'ubnulla ) nigra prui-
nofa t ciha, c ra f la, t aiulcm con v e x a et fubtus profundius imme r f a , duplex ; pa.
renchymate e (Irato dupl ic i conipo l l to ; fuperiori hy a l ino fubge lat ino fo tenui fimi-
l a r i , inferiori craíüíVuiio denío fubpulv e ra ceo atro opaco.
Gongyli intra fubilant iam lamin ae prol igera e co rne am nidulante s nudi fubf ir ia tim
cl iipüí it i , in maf ia fubja cent i aggre ga t i c om p a d i .
T h a l l u s f il ifo rmis teres vel planu s , rubramofus vel angu f le laciniatus , c u t ic u la fe -
nera fubcarti lagin ea mo l i io r i o b d u d u s , intus i luppeus co n ip ad u s .
GENUS
O b f e r v a t i o n e s .
Nifi margo thallodes, demum evanefcens, in junioiibus hujus Generis apolheciis
adellet, haec a thallo foimata vix dicerentur. Et margine in adultii apotheciis
fere obliterato, totum apothecium e fuhfiancia propria tantum confiare- obfervatur
dimidia fua parte fupra thallum prominente.cOuvexa immarginata, altera in thailo
immerfa fubtusque cum fubfiantia thalli medullari immediate connata atque ibidem nulla
cuticula vel membranula propria cind a .
Strudura et indole interna conveniunt R o c c e l l a r u m apothecia jcum L e c i dea
e p U t y c a r p a e et L e c a n o r a e C e r a t o n i a e lamina p ro lig e ra , duplici fub-
fianiia compofita.
M In