Gyalecta thelotremella n. sp. Thallus albus vel 
ex albido-carneo variegatus, tartareus, crassiusculus, sub- 
undulato-inaequalis, contiguus, tenuissimeve rimulosus, effusus, 
protothallo albo obsoleto. Apothecia minuta, rotundata, quan- 
doque subellipsoidea, immersa, disco concavo aut plano dilute 
roseo, demum fuscidulo vel nigrescente, exipulo crasso, integro, 
tumido, thalli concolore, tandem attenuato, depresso. Asci 
elliptico-lanceolati, 8-spori, paraphysibus affuentibus capil- 
laribus obvallati. Sporae plerumque ellipsoideae rariter 
ovoideae, pluriloculares, loculis polymorphis, hyalinae, 0,019 
—25 mm long., 0,010—12mm. crass. Ad rupes calcareas. 
Lecidea Sardoa Bagl. in Erb. Critt. Ital. II. No. 516. 
Thallus tartareus, areolatus, albidus, pulverulentus, demum 
e carneo ad subfuscum vergens, nudus: areolae planae ru- 
gulosaeve, polymorphae in crustam effusam, undulatam, 
rimuloso-diffractam congestae, hypothallo atro obsoleto. Apo- 
theeia inter areolas immixta easque vix aequantia, subeon- 
tigua, adpressa aut plura confluentia, admodum attenuata, 
constanter plana, nonnumquam rimulosula, tenuissime margi- 
nata, pruina alba demum laevissima suffusa. Asci clavati 
8-spori paraphysibus conglutinatis apice viridi-fuscescentibus 
obvallati. Sporae oblongae, breviter fusiformes, in utroque 
je nucleolum sphaericum foventes, episporio tenuissimo, 
yalinae, 0,012—15 mm. long., 0,004—5 mm. crassae. Ad 
rupes granitoideas. 
Lecidea platycarpoides nov. spec. Thallus tar- z =: 
tareus, crassus, cinereo-albicans, aequalis, areolatus, subti- 
literque rimulosus, bypotballo albo enatus. Apothecia majora 
(1!,, 2 mm. lata), omnino emersa, sessilia, disereta aut botry- 
 08e aggregata, deformataque, primitus plana, dein conveza 
 Aonnumquam umbonata, pruina laevi cinerea ırorata, mar- 
gine crassiusculo inflexo, integro corrugatove, nudo, demum 
 attenuato subreclinante.e Hypotheeium crassum, nigrum, 
 lamina tenuis, alba. Spermogonia copiosa in singula areola 
bina ternave, minuta, immersa, apice nigro erumpentia. 
Asei late elavati 8-spori, paraphysibus gracilibus conglut- 
natis apice fuscescentibus obyallati. Sporae medioeres, ovo- 
_ ideae aut ellipsoideae, episporio tenuissimo, hyalinae, 0,016mm. 
long., 0,008—9 mm. crassae. Spermatia cylindriea 0,008— 
010mm, long., 0,002 mm. erass. Ad rupes granitoideas. 
(Schluss folgt.) 
