Pi/renula] ii. pyrenolichenes (Wainio). 453 



No. 187. Ad corticem Entandrophragmatis angolensis in sylvis primi- 

 tivis prope Sange. No. 205. Ad corticem ZanthoxyU in monte Alta 

 Queta. No. 339 pr. p. 



Spor« 8na3, S-septattu, nigricantes, long. 0-017 ad 0'019, crass. 0'0055 

 ad 0008 mm., loculis lenticularibus. Paraphyses simplices. Peri- 

 thecium basi deficiens (in no. 187), cavitate depresse conoideo-sub- 

 globosa aut fere hemisphierica. No. 205 ad var. Angolensem Wain, 

 pertinet, pseudostromatibus tenuioribus et ostiolo minore, hand pallida 

 anniilato dignotam. Incertum est, anne cum P. Acharkma confluit. 



2. P. (subg. Eupyrenula sect. Dimidiata) conica Miill. Arg., 

 Lich. Afr. Occ, p. 43. 



Ad corticem ai-boris prope flumen Quillu leg. Soyaux, teste 

 Miill. Arg., I.e. 



3. P. fuscolurida Wain., sp. n. 



Thallus endophloeodes, macula fuscescente vel partim testaceo- 

 fiisce«cente indicatus, Isevigatus, hypothallo nigricante limitatus. 

 Apothecia verrucas 0'5 ad 0'8 mm. latas, depresso-hemisphsericas, 

 nigras vel fusco-nigras, subnudas, opacas, vertice convexas aut 

 demum umbonatas formantia. Perithecium fuligineum, basi 

 deficiens, hemisphsericum, latere anguste alato-dilatatum. Sporse 

 Suae, oblique monostichse, 3-septat8e, loculis sat sequalibus, fusces- 

 centes, long. 0'014 ad O'CIT, crass. 0'006 ad 0"007 mm., apicibus 

 obtusis. 



Sierra Leone. — Ad corticem arboris " Hog-Plum " (i.e. Spondias 

 Jfombhi L.), prope Freetown cultas. No. 247 pr. p. 



4. P. parva Wain., sp. n. 



Thallus endophloeodes, macula albida aut albido-pallescente 

 indicatus, Isevigatus, hypothallo nigricante limitatus. Apothecia 

 verrucas 0"2 ad 0'25 mm. latas, depresso-hemisphsericas aut 

 hemisphsei'icas, nigras, opacas, strato thallino tenuissimo amoi-pho 

 pellucido obductas, vertice convexas formantia. Perithecium 

 fuligineum, dimidiatum, basi deficiens, haud alatum. Sporje Snse, 

 distichse, 3-septat8e, loculis sat sequalibus aut apicalibus difformi- 

 bus, pallid&e aut demum etiam obscurata;, long. 0'014 ad 0"016, 

 crass. 0'005 ad 0'006, apicibus obtusis. 



Sierra Leone. — Ad corticem arboris " Hog- Plum," prope Freetown 

 cult«, cum specie praicedente. No. 247 pr. p. 



5. P. (sect. Pyramidalis) eucalypta Wain., sp. n. 



Thallus tenuis, pallidus, Isevigatus, hypothallo indistincto. 

 Apothecia verrucas 0*7 (ad 0'5) mm. latas, hemispha^ricas aut 

 depresso-hemispha3ricas, nigras, strato thallino tenuissimo amorpho 

 pellucido obductas, vertice convexas aut rarius leviter umbonatas 

 formantia. Perithecium fuligineum, compressum, basi tenui 

 leviter convexum, latere anguste alato-dilatatum. Sporse 8na; 

 aut abortu pauciores, fuscescentes, 3-septatse, long. 0'030 ad 0"036, 

 cra.ss. 0"014 ad 0'016 mm., apicibus obtusis, loculi apicales inter- 

 mediis paullo minores. 



GoLUNCo Ai.To. — Ad corticem F/ci (Quibebe — i.e. F. Quibeha 

 Welw.) prope Luinba. No. 213 pr. p. 



VOL. II. 30 



