458 II. PVRENOLiCHENES (Wainio). [Pori7Uc 



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

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

 at apotheciis apice hand impressis et sporis minoribus ab ea 

 diiferens. 



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

 Sj)ondias Momhhi L.) cultie prope Freetown. No. 235. 



2. P. tetracerae (Ach.) Mull. Arg., Pyr. Cub. p. 401 ; Wain., 

 Etud. Lich. Bres. II. p. 223. 



Verrucaria Tetracerw Ach., Meth. Lich. p. 121. 



Cazengo. — Ad ramulos Ahodeke in dumetosis ad flumen Luinha. 

 No. 246. Sporfe in hoc specimine long. 0'0.82 ad 0040, crass. 0005 ad 

 O-O07 mm., fusiformes, 7-septat;e, strato gelatinoso nullo. Apothecia 

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

 hand desquamesceus. Hypothallus parum distinctus. Dicatur var. 

 adnata Wain. Forsan non est autonoma species, quamquam thallo 

 a P. tdracerd' diiferens, et intermedia inter P. tetnicera' et P. variegatam 

 Fee est. Etiam Wain. Lich. Bras. Exsicc. n. 459 et 507 intermedii 

 inter has species sunt, magis cum posteriore congruentes. Transire 

 ita hae species videntur. 



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

 Mvill. Arg., Lich. Afr. Occ. p. 41 ; Wain., Etud, Lich. Bres. 11. 

 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 Miill, 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 epiphlceodes, tenuis, cinereus, sat Itevigatus, sat opacus, 

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

 hemisphfericas, basi demum sat abruptas foi-mantia, amphithecio 

 thallino thallo concolore jiai'te inferiore obducta, vertice demum 

 late denudato et cceruleonigricante, convexo. Perithecium palli- 

 dum, vertice cseruleonigricante. Nucleus jodo non reagens. 

 Pai-aphyses simplices, septatte. Asci oblongi, membrana tenui. 

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

 acutis, 5- ad T-septataj, loculis demum sat a^qualibus, decolores, 

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

 ad 0*007 mm, Sporis cx-assioribus a P. argillacea Miill. Arg. 

 differt. 



GoLUXGo Alto.— Ad corticem arboris Artocarpeaj, Musibiri dictje 

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



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



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

 Miill, Arg., I.e. 



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



Thallus tenuis, epiphlceodes, albidus, sat Isevigatus, sat opacus^ 

 hypothallo nigricante partim limitatus, Gonidia chroolepoidea, 



