Bd. IV: ıı) THE LICHENS. qı 
Mastodia Hoox. FIL. et HaRrv. 
Mastodia tessellata Hook. FIL. et Harv. — Waın. Belg. p. 36, pl. IV, fig. 33 
and 34. — Pl. 3, fig. 36. 
Literature: Hook. Fl. Ant. II, p. 499, pl. 194, fig. II. 
Distribution: Eastern Asia; South America and Antarctis; South Georgia; Kerguelen. 
Localities: Tierra del Fuego (6); South Georgia* (13); South Shetland Islands (21); 
Graham Land (23, 24, 28, 30). — On stone, in fruit. 
Fungi parasitici. 
(These are not included in any of the statistical lists.) 
Chaetomium bacidiae nov. spec. 
Description: p. 18. 
Locality: Falkland Islands* (9). — Parasitic on Dacıdia tuberculata. 
Didymosphaeria placodiorum Warn. — Waın. Belg. p. 39. 
Distribution: Antarctis only. 
Locality: Graham Land (28). — Parasitic on the thallus of Placodium elegans, in fruit. 
The Localities of the Expedition. 
1. Tierra del Fuego, Ushuaia. 
On trees: Ochrolechia pallescens; Haematomma punriceum; Pannoparmelia an- 
zioides; Parmelia enteromorpha, lugubris, olivacea, pertusa; Cetraria glauca, 
ulophylla; Letharia Poeppigii; Usnea xanthopoga; Psoroma sphinctrinum; 
Sticta Freycinetii, granulata, obvoluta, orygmaea; Stictina carpoloma, crocata, 
filicina; Nephroma australe. 
Over old plants: Cladonia digitata; Psoroma ciliatum, hypnorum. 
Over earth, often mixed with moss: Sphaerophoron coralloides; Stereocaulon 
tomentosum; Cladonia deformis, furcata, pyxidata, rangiferina, sguamosa, 
subsquamosa; Parmelia saxatilis, sulcata; Cetraria gracilenta; Physcia stellaris; 
Peltigera canina, malacea, rufescens, spuria; Solorina spongiosa. 
On stone: Lecidea elaeochroma; Xanthoria lychnea; Placodium elegans; Neuro- 
pogon trachycarpum. 
6—112865. Schwedische Südpolar- Expedition. 
