262 
Lichenes 
TOBLER, F., Verrue as ter lichenic ola nov. gen., nov. spec. (Ab- 
handl. Naturw. Verein Bremen 1913, 21 , h. 2, 383—384; 5 Fig.). 
Sandstede sammelte 1906 in Oldenburg eine Cladonia bacillaris 
Ach., die schon macroscopisch einen auffallenden Parasiten zeigte. Auf 
den Podetien treten, namentlich unterhalb des Apotheciums, Anhäufungen 
dunkler Wärzchen auf, die bisweilen in Häufchen zusammenliegen und bis 
1 mm hervorragen können. Die dunklen Gebilde erwiesen sich als wachs¬ 
artige Fruchtgehäuse, welche auf einem wulstig-halbkugeligen Stroma 
einzeln warzig hervortretende Pycniden enthalten. Ascusfrüchte waren 
nicht zu finden. Die Conidienträger scheinen gelegentlich sympodial ver¬ 
zweigt zu sein, sie enden mit mehreren Ästchen, die in Sterigmen aus¬ 
gehen. Die Sporen messen 4 — 8 X 1 —1,5 ju. 
Die neue Gattung gehört zu den Sphaeropsidales-Nectroideae Sacc. 
Subcohors zythicae Sacc., bildet indes entweder eine neue Sectio oder 
schließt sich an die Hyalosporae Sacc. an, nur daß die Sporen subhyalin 
sein müssen. Verf. will die Diagnose der Hyalosporae dementsprechend 
erweitert wissen. 
Ein Habitusbild, schwach vergrößerte Pycniden sowie Conidienträger, 
Sterigmen und Sporen sind abgebildet. W. Herter (Berlin-Steglitz). 
MERRILL, g. K., New and interesting Lichens from the State 
of Washington (Bryologist 1913, 16, 56—59). 
The list is accompanied by notes on the species. Lecanora ( Callo - 
pisma) nivalis var. minor, L. ( Squamaria :) rnbina dis creta, Biatora 
myriocarpella , and Lecanactis illecebrosa var. megaspora are described 
as new to science. J. Ramsbottom (London). 
HOWE, R. H., Lichens of Mount Katahdin, Maine (Bryologist 
1913, 16, 33-36). 
Howe here catalogues 62 species found by him on a short expedition. 
To complete the list more or less several species of a previous collector 
are interpolated. The locality of the gathering, the condition of the lichen 
and its habitat, are noted. j. Ramsbottom (London). 
WHELDON, J. A. and TRAVIS, W. Gb, Lichens of Arran (Journ. Bot. 
1913, 51, 248—253). 
The lichens met with on a holiday in the island of Arran in the 
Firth of Clyde are here listed. The habitat and locality are given in 
each case. Practically the whole of the field work was done on the coast, 
little or nothing being done on the mountains. Lichens are here abundant 
on the shore-rocks. A note was taken of the kind of rock on which the 
saxicolous species were met with. Many of the silicicolous lichens were 
found to occur indifferently on siliceous sedimentary rocks as well as on 
some of the acid igneous rocks. There is a well-marked lichen-association 
on the barer sandstone rocks just above high-water mark. A few species 
were found to occur not only on sandstone and acid igneous rocks, but 
also on igneous rocks of basic type. Also certain lichens which in many 
parts of the country are restricted to calcareous rocks were here observed 
on silceous rocks. It is suggested that their occurrence depends upon 
xerophytic conditions and not upon the chemical composition of the sub¬ 
stratum. Some observations were also made on the part played by the 
