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glaucescentibusve, moniliformi-concatenatis, filamentis ad instar 
Polycocei glomeruloso-intricatis, pariete gelatinoso distineto, sat 
tenui, apothecia thallo innata, demum elevata peltataque, 
excipulo thallode basi constrieto instructa; exeipulum strato 
eorticali destitutum, extus thallinum gonidiaque continens, peri- 
thecio grosse parenchymatico infra hypothecium modice evoluto; 
sporae octonae, ellipsoideae aut fusiformi-ellispoideae, simplices, 
decolores (inter Collema et Pannariam prorsus intermedium, 
hypothallo et habitu posteriori simile, at textura thalli exeipulique 
ei dissimillium ; affinitatun eorum bene demonstrat (1 spec. nova). 
Leprocollema (Üollemeae); Thallus erustaceus, home- 
omericus, strato corticali destitutus, ex hyphis pareis, leptoder- 
matieis, eirc. 0,002—0,0025 millim. crassis, increbre septatis, 
et gonidiis abundantibus immixtis constans, hypothallo indistincto; 
gonidia nostocacea, cellulis coeruleo - virescentibus glauces- 
centibusve, moniliformi-concatenatis, filamentis ad instar Polycocev 
glomeruloso -intricatis, pariete gelatinoso distineto, sat tenui; 
apothecia (thallo verisimiliter innata, quod autem observare non 
potui) demum elevata adnataque, lecideina; exeipulum proprium, 
gonidiis destitutum, grosse pseudoparenchymaticum; sporae ellip- 
soideae oblongaeve, simplices, decolores; apotheciis Parmeliellae 
Müll. Arg. simile, at thallo omnino dissimili (1 spec. nova). 
Lecidocollema (Üollemeae) ; apotheciis biatorinis, gonidiis 
destitutis a Collemate difierens (Üollema opulentum Mont.) 
Pterygiopsis (Collemeae). Thallus crustaceus aut fere 
squamosus, ambitu lacinulato-efliguratus, colore obscurus, rhizinis 
hypothalloque distineto destitutus, strato corticali superiore 
destitutus, parte superiore imprimis e cellulis gonidiorum (hyphis 
parce immixtis) constante, inferne strato corticali obductus ex 
hyphis formato sat leptodermaticis fere parenchymatice septatis 
eonglutinafisque; gonidia sirosiphoidea (ad Stigonema Bornet 
pertinentia); cellulis in series plures dispositis, vagina aurea aut 
fuscescenti-aurea, sat tenui, apothecia thallo innata, subimmersa 
permanentia, disco parvulo; perithecium proprium nullum distine- 
tum; paraphyses sat laxe cohaerentes, haud ramoso-connexae, 
sporae octonae, ellipsoideae aut subglobosae, simplices, decolores 
(1 spec. nova). 
Calothricopsis (Collemeae). Thallus subsquamosus aut 
fere crustaceo-areolatus, rhizinis hvpothalloque distincto desti- 
tutus, strato corticali nullo, ex hyphis tenuibus (0,001— 0,0015 
millim. crassis) leptodermatieis, parce septatis, inter gonidia 
abundantia caespitoso-radiantia conglutinata sat parce procur- 
rentibus formatus (acid. lactie., PH; O, + J), homoeomericus, 
colore obscurus, in lamina tenui fuscescenti-luteus; gonidia calo- 
thrieoidea (conf. Bornet), cellulis moniliformi-concatenatis, hetero- 
