458 II. PYEENOLICHENES (Wainio). [Porina 



gelatinoso crasso indutse, long. 0'042 ad 0-046, crass. 0'012 mm. 

 (strato gelatinoso non computato). P. nuculce Ach. est affinis, 

 at apotheciis apice baud impressis et sporis minoribus ab ea 

 differens. 



SiERKA Leone. — Ad truncos vigentes arboris "Hog-Plum" (i.e. 

 Spondias Mombin L.) oultte props Freetown. No. 235. 



2. P. tetracerse (Act.) MUll. Arg., Pyr. Cub. p. 401 ; Wain., 

 Etud. Lich. Br6s. II. p. 223. 



Verrucaria Teiracerce Ach., Math. Lich. p. 121. 



Cazengo. — Ad ramnlos Alsodeice in dumetosis ad flumen Luinha. 

 No. 246. Sporse in hoc specimine long. 0'032 ad 0'040, crass. 0'005 ad 

 0'007 mm., fusiformes, 7-septatae, strato gelatinoso nullo. Apothecia 

 ostiolo fuscescente. Thallus sat tenuis, glaucescens, arete adnatus, 

 hand desquamescens. Hypothallus parum distinctus. Dicatur var. 

 adnata Wain. Forsan non est autonoma species, quamquam thallo 

 a P. teiracerce differens, et intermedia inter P. tetracerce et P. variegatam 

 F&e est. Etiam Wain. Lich. Bras. Exsicc. n. 459 et 507 intermedii 

 inter has species sunt, magis cum posteriors oongruentes. Transire 

 ita h£e species videntur. 



3. P. desquamescens Fee, Ess. Crypt. Ecorc. Suppl. p. 75; 

 Miill. Arg., Lich. Afr. Occ. p. 41 ; Wain., Etud. Lich. Bres. II. 

 p. 222. 



Corticola ad flumen Quillu (leg. Pechuel-Loesche) et prope 

 Pungo Andongo in Angola (leg. Soyaux), teste Miill. Arg., I.e. 



4. P. Africana Mull. Arg., Lich. Afr. Occ. p. 41. 



Corticola ad flumen Quillu leg. Pechuel-Loesche, teste Miill. 

 Arg., I.e. 



5. P. Sangeana Wain., sp. n. 



Thallus epiphloeodes, tenuis, cinereus, sat Isevigatus, sat opacus, 

 hypothallo nullo distincto. Apothecia verrucas 0*2 mm. latas, 

 hemisphsericas, basi demum sat abruptas formantia, amphithecio 

 thallino thallo concolore parte inferiore obducta, vertice demum 

 late denudato et cceruleonigricante, convexo. Perithecium palli- 

 dum, vertice cseruleonigricante. Nucleus jodo non reagens. 

 Paraphyses simplices, septatse. Asci oblongi, membrana tenui. 

 Sporse Snse, distichse, fusiformes, apicibus sat obtusis aut sat 

 acutis, 5- ad 7-septatse, loculis demum sat ajquaUbus, decolores, 

 strato gelatinoso nullo indutse, long. 0'017 ad 0-022, crass. 0'006 

 ad 0-007 mm. Sporis crassioribus a P. argillaeea Miill. Arg. 

 diff"ert. 



GoLUNGo Alto. — Ad corticem arboris ArtocarpeK, Mnsibiri dictse 

 (i.e. Myrianihus arboreus), prope Sange. No. 376 pr. p. 



6. P. argillaeea Miill. Arg., Lich. Afr. Occ. p. 42. 



Ad corticem prope flumen Quillu leg. Pechuel-Loesche, teste 

 Mull. Arg., I.e. 



7. P. (Sagedia) elaeidis Wain., sp. n. 



Thallus tenuis, epiphloeodes, albidus, sat Isevigatus, sat opacus, 

 hypothallo nigricante partim limitatus. Gonidia chroolepoidea, 



