400 I. discolichenes (Wainio). [Par me! in 
6. P. Abessinica Nvl. in Krempelh. Lich. Afr. p. 140, Fl. 1885, 
p. 608 ; Stizenb., Lich Afr. p. 53. 
Ad flumen Kongo legit Ledien, te.ste Stizenb., I.e. 
7. P. Soyauxii Mull. Arg., Lich. Afr. Occ. (Linna-a 1880) p. 32. 
Ad lapides pi-ope Pungo Andongo in Angola lecta ;i Soyaux, 
teste Midi. Arg., I.e. 
8. P. perforata (Jacq.) Ach. ; Wain., I.e., p. 38. 
PUNGO ANDONGO (2400 ad 3800 ped. s. m.). — Ad basin truncorurn 
in sylvis claris prope Presidium. No. 115. Ster. 
9. P. sublaevigata Nyl. in Fl. 1885, p. 611; Wain., Etud. 
Lich. Bres. 1. p. 53. 
P. Hookeri Tayl. (Midi. Arg. Lich. Beitr. n. 1338) thallo 
Lsidioso ab hac specie dift'ert. 
Pungo Andongo (2400 ad 3800 ped. s. m.).— Ad Vellosias in rupibus 
prope Presidium. No. Ill pr. p. Fert. Ad ramos fruticis Caxinde- 
candange (i.e. Myroihamnus flabellifolius Welw. No. 1279) in rupibus 
editis prope Guinga Sobati Quibanga. No. 114 pr. p. Ster. 
Golungo Alto. — Ad truncum arboris in sylvis prope Tange. 
No. 122. Ster. 
10. P. hypocraea Wain., sp. n. 
Affinis P. quercince (Willd.) sive P. liliacece Nyl., at thallo 
subtas pallido et reactione thalli ab ea differens. Thallus superne 
glaucescenti-albidus, inferne pallidus, laciniis circ. 5 ad 1*5 mm. 
latis, adpressis, crebre lobatis incisisque, axillis lacinularum 
rotundato-conniventibus, esorediatus, isidiis destitutus, subtus 
rhizinis brevibus, pallidis, subsimplicibus usque ad marginem 
instructus, KHO superne non reagens, intus lutescens et demum 
rubescens, 0aCl 2 O 2 non reagens. Apothecia circ. 5 ad 2 mm. 
lata, applanato-cupuliformia, imperforata, sessilia, disco rufo, 
margine fisso aut subintegro, excipulo extus isidioso. Spora: 8na-, 
ellipsoideae, long. 0-012 ad 0*009, crass. 0-007 ad 0-006 mm. 
Hymenium jodo persistenter crerulescens. Paraphyses arete 
cohaerentes, neque ramosse, nee connexa?, clavatse. 
Huilla (3800 ad 5500 ped. s. m.). — Ad corticem arborum Legu- 
minosarum in sylvis densis juxta flumen Monino. No. 32 pr. p. Fert. 
P. leucorhiza Wain. (/'. hypoleuca in Lich. Ruwenz. p. 40, haud 
Midi. Arg., Lich. Beitr. n. 1145) thallo tenuiore et reactionibus ab hac 
specie differt. 
11. P. isidiza Nvl. in Fl. 1885, p. 612 ; Wain., Etud. Lich. 
Bres. I. p. 48. 
Pungo Andongo (2400 ad 3800 ped. s. m.). — Ad ramos fruticis 
Cuxinde-candange (i.e. Myrethamnus flabellifolius Welw. No. 1279) in 
rupibus editis prope Guinga Sobati Quibanga. No. 114 pr. p. Ster. 
Ad Serra Chella in Angola legit Newton teste Nyl., I.e. 
12. P. concrescens Wain., sp. n. 
Thallus superne glaucescenti-albidus, subtus niger, adpressus, 
crebre laciniatus, laciniis ineequaliter dilatatis, circ. 4 ad - 5 mm. 
latis, planis, contiguis et passim confluentibus, apicibus sub- 
truncatis, circ. 1 ad - 5 mm. latis, irreffulariter dichotome ramosis, 
