10 OTTO VERNON DARBISHIRE, (Schwed. Südpolar-Exp. 
plana, margine instructa valde crasso, albido; epithecium parce pruinosum, dein 
epruinosum; hypothecium fuscescens; sporae octonae, hyalinae, unicellulares, 12— 
14X4—5 ıı magnae; spermogonia nulla visa neque soralia; habitat ad saxa, Sozxth 
Georgia, Cumberland Bay, Moraine Fiord. 
Notes: The very large and regular apothecia are the most striking points in the 
appearance of this species. Another feature is the broad white margin of the apo- 
thecium. This species seems to be not unlike Zecanora atrocaesia NyL. which is 
found in abundance on Kerguelen but our plant is clearly more coarsely built and 
the various parts are larger and better developed. 
Aspicilia lirellina nov. spec. 
(Plate 2, fig. 18, 19.) 
Thallus crassus ad 1.5 mm, albidus, continuus et laevis, parce rimosus ut limus 
desiccatus, K flavens, margine tenuiori et effluenti; hypothallus albus sed thallum 
lichenis alieni tangens lineam nigram faciens; apothecia immersa, aspicilioidea, dif- 
formia, saepius graphideoidea et lirellinea, nigra, ad 3 mm longa et 0.2—0.5s mm 
lata; epithecium rufescens; parathecium et hypothecium quasi minime flavescens; 
sporae octonae, hyalinae, uniseriatim dispositae, unicellulares, 12—14xX8 u magnae; 
spermogonia et soralia nulla visa; habitat ad saxa, Falkland Islands, Port Louis. 
Notes: This species is well separated from other species of this genus by the 
peculiar apothecia which are not unlike those met with in the Graphidei. They are 
in many cases distinctly lirelline and though occasionally round or more or less 
round, the majority especially of the larger ones are of very varying shapes. This 
new species seems to be very common in the locality where the specimens before 
us were gathered. 
Aspicilia pullata nov. spec. 
(Plate 2, fig. 20.) 
Thallus tenuis, coeruleo-nigricans aut cinereo-nigricans, continuus, parce rimoso- 
diffractus; hypothallus optime evolutus, nigricans, effusus et ad 4 mm excurrens, 
laciniatus; apothecia immersa primitus plana deinde parce emergentia et convexula, 
ad I mm lata, rotundata; epithecium nigricans; parathecium et hypothecium decolor; 
sporae octonae, hyalinae, unicellulares, 15>—16x 5—6 ıı magnae; spermogonia nulla 
visa; habitat ad saxa, Soxth Georgia, Cumberland Bay, Moraine Fiord. 
Notes: This species is characterised by a very remarkable hypothallus which ex- 
tends for in some cases 4 mm from the thallus which itself is very thin. The hypo- 
thallus consists of dark brown to black laciniae which are very much divided. The 
specimen before us is quite small and the black searching hypothallus is a very 
prominent feature. 
