A'cevia] i. discohchenes (Wainio). 451 



MOSSAMEDES (0 ad lOOO ped. s. m.).— Ad caules ZygophylU orhiculati 

 Welw. prope Mossamedes. No. 423. 



4. N. Benguellensis Wain., sp. n. 



Tha,llus parum distinctus, circa apothecia ex hyphis nigri- 

 cantibus formatus, gonidiis destitutus. Apothecia sat dispersa, 

 irregulariter ellipsoidea, long. 1-3 ad 0-7, latit. 0-7 ad 03 mm., 

 emergentia, disco nigro, nudo, leviter convexo. Hypotheciiim et 

 «pitheeium et lamina tota apothecii olivaceo-smaragdula. Hyme- 

 nium jodo persistenter casrulescens. Asci clavati, long. circ. 0'030, 

 crass. O'OIO mm., parte superiore prsesertimque apicem versus 

 membrana incrassata. Sporse 8nse, distichse, decolores, ovoideo- 

 •oblongse, long. 0-009 ad 0-012, crass. 0-003 mm., 2-septat8e. 



Benguella. — Ad lignum sepium in ipsa nrbe Benguella. No. 20. 



II. PYRENOLICHENES. 



1. ENDOCARPON Hedw. 



1. E. pusillum Hedw., Descr. Muse. ii. fasc. 2 (1788), p. 56. 



Dernnatocarpon Arn., Lich. Jur. p. 239, Lich. Tirol xxx. p. 34. 

 Verrucaria Garovaglii (Mont.) Nyl., Lich. Angol. p. 14. Thelo- 

 trema Schcereri Hepp, Flecht. Eur. n. 100. 



GoLUNGO Alto. — Ad terram arenosam juxta margines sylvae in 

 monte Cungulungulo (2500 ped. s. m.) plagas latas obtegens sat 

 frequenter obvenit. No. 55. 



Specimina determiuabilia non vidi. 



2. THELENELLA (Nyl.) Wain. 



1. Th, (subg. Meristosporum sect. Phloedbathelium) purpurina 

 {Leight.) Wain. 



Trypethelium purpurinum Leight., Lich. Amaz. p. 459. Baihe- 

 lium Miill. Arg., Lich. Afr. Occ. p. 45. 



Corticola secus flumen Quillu leg. Pechviel-Loesche, teste Miill. 

 Arg., I.e. 



2. Th. (subgen. Euthelenella sect. Microglcena) fulva Wain., sp. n. 

 Thallus sat tenuis aut mediocris, pulchre fulvescens, continuus, 



sat Isevigatus aut verrucoso-insequalis, nitidiusculus, hypotliallo 

 parum distincto. Apothecia verrucas 1-5 ad 1 mm. latas, mammEe- 

 formes, basi baud constrictas, strato thallino thallo concolore 

 late obductas, vertice 0-4 ad 0-6 mm. lato denudato, nigricante 

 aut primum cinerascente, umbonato aut demum applanato in- 

 structas formantia, solitaria aut rarius parce confluentia. Peri- 

 thecium globosum, fuliginevim, integrum. Nucleus jodo non 

 reagens, gonidia hymenialia non continens. Paraphyses increbre 

 ramoso-connex£e. Sporse 4niE, decolores, oblongas, apicibus rotun- 

 datis, murales, cellulis numerosissimis, halone indutae, long. circ. 

 ■0-190 ad 0-220, crass. 0-030 mm. Gonidia chroolepoidea. Stratum 

 <3orticale thalli amorphum, bene evolutvim. 



GoLUNGO Alto. — Ad CiUmm Medicam silvestrem prope Mata 

 Quisuoulo. No. 230. • 



Affinis sit Th. duplkascenti (Nyl.) Wain. (Nyl., Lich. Andam. p. 19). 



