PDF - CES (IISc)

FAMILIES AND GENERA 309
SERifcs i. PYRENOCARPEAE
ALGAL CELLS PROTOCOCCACEAE OR PALMELLA.
MORIOLACEAE \
EPIGLOEACEAE \, Thallus crustaceous, perithecia solitary
VERRUCARIACEAE]
DERMATOCARPACEAE. Thallus squamulose or foliose.
P YRENO THAMNIA CEA E. Thallus fruticose.
ALGAL CELLS PRASIOLA.
VI. MASTOIDIACEAE.
ALGAL CELLS TRENTEPOHLIA.
VII. PYRENULACEAE }
VIII. PARATHELIACEAEY Thallus crustaceou s, perithecia occurring singly.
IX. TRYPE^HELIACEAE\ .
X. ASTROTHELIACEAE}' Thallus crustaceous, perithecia united (stromatoid).
J XI. MYCOPORACEAE. Thallus crustaceous, perithecia in compact groups with a
common outer wall.
XII. PHYLLOPYREN1ACEAE. Thallus minutely foliose.
ALGAL CELLS PHYLLACTIDIUM OR MYCOIDEA.
XIII. STRIGULACEAE. Tropical leaf-lichens. ,,*-.
ALGAL CELLS NOSTOC OR SCYTONEMA.
XIV. PYRENIDIACEAE. Thallus minutely squamulose or fruticose.
SERIES 2. GYMNOCARPEAE
Subseries i. Coniocarpineae, with subperithecial fruits.
Subseries 2. Graphidineae, with elongate, narrow fruits.
Subseries 3. Cyclocarpineae, with round open fruits.
SUBSERIES i. CONIOCARPINEAE
This is a well-defined group, peculiar in the disappearance of the asci at an early stage
so that the spores lie like a powder in the globose partly closed fruits. Algal cells, bright-
green ; Protococcaceae. There are only three families :
XV. CALICIACEAE. Thallus crustaceous, apothecia stalked.
XVI. CYPHELIACEAE. Thallus crustaceous, apothecia sessile.
XVII. SPHAEROPHORACEAE. Thallus foliose or fruticose, apothecia sessile.
SUBSERIES 2. GRAPHIDINEAE
This subseries comes next in the form of fruit development ; generally the apothecia
are elongate, with a narrow slit-like opening, so that a transverse section shows almost a
perithecial outline. Algal cells are mostly Trentepohlia.
XVII!. ARTHONIACEAE. Thallus crustaceous, apothecia oval or linear, flat.
XIX. GRAPHIDACEAE. Thallus crustaceous, apothecia linear, raised.
XX. CHIODECTONACEAE. Thallus crustaceous, apothecia generally immersed in
a stroma.
DIRINACEAE. Thallus crustaceous, corticate above, apothecia round.
ROCCELLACEAE. Thallus fruticose, apothecia round or elongate.
CYCLOCARPINEAE
SUBSERIES 3.
A large and very varied ! group In most of the families the algal cells are bright-green
(Chlorophyceae), in some they are blue-green (Cyanophyceae), these latter corresponding
to Reinke's order Cyanophili. The apothecia, as the name implies, are round and open ;
the "Cyanophili" have been placed by Zahlbruckner after those families in which the