Arthonia] i. discolichenes (Wainio). 449 



Var. reducta Wain. 



Thallus albidus aut passim dilute roseus. Apothecia elongata, 

 angusta, circ. O'l ad 0'15 mm. lata, substellato-ramosa aut partim 

 simplicia, disco denudato nigricanteque, margine coccineo-pruinoso. 

 Hymenium jodo vinose rubens. Asci pyrifovmes, long. circ. 0-046, 

 latit. 0-028 mm. Sporse decolores, vulgo 3-septat£e, parce 4-septat8e, 

 long. 0-016 ad 0-020, crass. 0-003 ad 0-006 mm. 



Bark.v do Bengo. — Ad ramulos semiherbaceos inter S. Antonio de 

 Bengo et Quifandongo. No. 323. 



Var. rimata Wain. 



Thallus plus minusve coccineo-pruinosus. Apothecia oblonga, 

 opegraphoidea, margine elevato, nigricante, denudato, disco 

 impresso, dilatato-rimseformi, nigricante, denudato. Hymenium 

 jodo persistenter cserulescens. Asci pyriformes. Sporse 8nse, 

 decolores, ovoideo-oblongse, vulgo 5-septatse, parce 6-septat8e, 

 cellulis 2 mediis quam reliquis paullo longioribus aut cellulis 

 sequalibus, long. 0-017 ad 0-022, crass. 0-005 ad 0006 mm. 



Benguella. — Ad ramulos Acaoife etbaiece in sylvestribus non procul 

 ab oceano prope Benguella. No. 3. 



Var. medusaeformis Wain. 



Thallus albidus. Apothecia elongata, crebre et abundanter 

 radiato-ramosa, disco piano fuscescente, tenuissime griseo-fusces- 

 centi-pruinosa, margine indistincto, passim maculis dilute roseis 

 circumdata. Hymenium jodo persistenter cserulescens, ascis 

 violascentibus. Sporse Snse, 3 — 4-septat8e, cellula apicali quam 

 reliquis duplo longiore, long. 0-016 ad 0-OlS, crass. 0-005 ad 

 0-007 mm. Bpithecium intense coccineum. Hypothecium dilutius 

 coccineum. 



LoANDA (0 ad 1000 ped. s. m.). Ad truncos Adansonue duj/tutci' 

 prope Bepresa do Manoel Pereira. No. 327 pr. p. 



Var. obscura Schser. ; Koerb., Syst. Germ. p. 291. C'oniocarpon 

 ijregarium P ohscurum Sch»r., Lich. Helv. Exs. n. 649 ; Mass., 

 Summ. Animadv. (1853), p. 13; Hepp, Fleoht. Eur. n. 163. 



Thallus vulgo livido-cinerascens. Apothecia nigra, difformia, 

 brevia, nuda. 



GoLUNGO Alto.- — Ad corticem Eniaiulrophragmatk angolensis prope 

 Sange. No. 469. Perithecium laterale (sub mioroscopio visum) 

 coccineum. Asci clavati, latit. circ. 0022 mm. Sporas decolores aut 

 dilute fusoesoentes, long. 0-024 ad 0-026, crass. 0-009 ad 0010 mm., 

 4—5-1 ■ ■ 



11. A. rubella (Fee) Nyl., Syn. Arth. p. 89; Mull. Arg., 

 Graph. Feean. p. 56; Willey, Syn. Arth. p. 11. 



Hymenium jodo persistenter caarulescens, ascis pr. p. dilute 

 violascentibus. Epithecium sordide subrubescens. Hypothecium 

 pallidum. Asci ellipsoideo-obovoidei, long. circ. 0-050, crass. 

 0-040 mm. Sporse 8nse, decolores aut demum dilute nigricantes, 

 3 — 5-septat8e, cellula apicali quam i-eliquis duplo longiore, long. 

 0-026 ad 0-033, crass. 0-011 ad 0-012 mm. 



Ambkiz. — Ad truncum Elceidis rjui/ieensis. No. 360 pr. p. 



