—_— 3283 — 
ramosa, disco dilatato aut rimaeformi; excipulum thallodes, 
albidum, labiis demum plus minus elevatis, crassis, conniventi- 
bus aut demum hiantibus distantibusve, latere interiore hyphis 
constipatis clavatis cereberrime minutissimeque verruculosis aut 
subspinulosis obductis; perithecium evanescens, albidum; hyme- 
nium jodo haud reagens; paraphyses numerosae, neque ramosae 
nec connexae, apice clavatae, clava creberrime minutissimeque 
verruculosa subspinulosave; asci membrana tenui; sporae octonae 
aut pauciores, elongatae aut oblongae, murales aut pluriseptatae 
et tum loculis lentieularibus, decolores, jodo haud reagentes (2 sec- 
tiones: 1. Acanthographina: sporae murales; 2 Acantho- 
graphis: sporae pluriseptatae, loculis lentieularibus); 3 spee. 
novae. 
Mycocalicium besitzt keine Gonidien, daher von Calicium 
abzutrennen. M.parietinum (Ach.) mit var. minutellum (Ach.). 
Aspidothelium (Pyrenolichenes): Thallus crustaceus, 
uniformis, hypothallo et hyphis medullaribus substrato affixus, 
rhizinis nullis, fere homoeomericus, strato corticali haud evoluto; 
gonidia protococcoidea, simplicia; apothecia scutelliformia vel 
parte superiore exeipuli in scutellum sine discum cartilagineum 
dilatata, nucleum simplicem continentia, gonidiis hymenialibus 
nullis; peritheecium rectum, maxima parte albidum, amphithecio 
gonidia continente parte inferiore lateralive obductum; paraphyses 
simplices; sporae 4—6-nae, decolores, oblongae aut fusiformes, 
murales; pyenoconidia oblongo-eylindriea, vulgo curvata, tenuis- 
sima; sterigmata simplicia, exarticulata (1 spec. nova). 
Aspidopyrenium (Pyrenolichenes): Thallus crustaceus, 
uniformis, hypothallo et hyphis medullaribus substrato affıxus, 
rhizinis nullis, fere homoeomericus, strato corticali nullo; gonidia 
protococeoidea, simplicia; apothecia scutelliformia vel parte supe- 
riore exeipuli in scutellum vel diseum cartilagineum dilatata, 
nucleum simpliceem continentia, gonidiis destituta; perithecium 
rectum, albidum; paraphyses ramoso-connexae; sporae octonae, 
deeolores, fusiformes, pluriseptatae, loculis compressis (1 spec. 
nova). 
Corella (Zichenes imperfecti): Thallus squamosus aut 
minute foliaceus, difformis, rotundato-lobatus, ambitu adscendens, 
superne glaber, inferne hypothallo albido, ex hyphis haud 
cohaerentibus leptodermaticis parce septatis constante obsitus, 
rhizinis veris destitutus; zona gonidiali partem superiorem 
maximamque thalli occupante, et strato medullari gonidiis 
destituto tenui in parte inferiore thalli sito, strato corticali 
(„„hymeniove‘) destitutus; stratum medullare stuppeum, hyphis 
laxe contextis, 0,004— 0,003 millim. erassis, leptodermatieis, 
increbre septatis, lumine sat lato; zona gonidialis crebrius con- 
