Lickenen — Myxomyceten 
41 
NT 
NOVAK, J., Neue Liclienen aus Böhmen (Ziva, Prag 1912, 59 u. 
120). [Tschechisch.] 
Secothecium nigrescens n. sp. (verwandt mit 5. corallinoides Kbr.) 
und Steinia betulina n. sp. werden genau beschrieben. — Außerdem sind 
neu für Böhmen; Callopisma obscur ellum Lahm (auf Populus alba) und 
Bilimbia marginata Arn. (auf Tannenrinde). Die selteneren Arten fürs 
Gebiet übergehen wir hier. Matouschek (Wien). 
HERREJ A. W. C. J., New or rare Californian Lichens (Bryologist 
1912, 15 , 81—87). 
According to Herre the large and fructicose lichens of California 
are fairly well known and no new species of these are to be expected, though 
a number occur which are known only from other parts of the country. 
Among the rock lichens very little work has been done. The calcareous 
rocks especially should be studied as but very little attention has been 
paid to their lichens. The following new species are described: Tim- 
matothele umbellulariae , Heppia alumenensis and Legcinia s/iastensis. 
J. Ramsbottom (London). 
Lillie, D., Caithness Lichens (Scot. Bot. Rev. I, 1912, 146—153). 
This is a list of lichens found in Caithness. When the species 
is very rare the locality is mentioned, but there are only a few remarks 
as to relative frequency etc. J. Ramsbottom (London). 
MlNAKATA, K., Colours of plasmodia of some Mycetozoa (Nature 
1912, Nr. 2243, 220). 
In a letter to Nature, Minakata records the colours of the plas¬ 
modia of certain Mycetozoa. Physarum variabile Rex, var. sessile Lister: 
Orange yellow. Colloderma oculatum G. Lister: dingy watery-white with 
greenish or olivaceous tinge, then ochraceous, ultimately ferruginous and 
dirty throughout. Cribraria intricata Schrad.: pitch-black when the plas¬ 
modium is thick, and oil-brown when it is thin. Perichaena ckvysosperma 
Lister: pallid pink (pale brown according to Lister’s Monograph). 
Craterium concinnum Rex; milky then cream-coloured (yolk-coloured 
according to Lister). 
The number of species found in Japan now amounts to 105 of 
which three are new to science. — Arcyria glauca, Hemitrichia minor 
and Dichaena robusta. J. Ramsbottom (London). 
LISTER, G., New Mycetozoa (Journ. Bot. 1913, 51 , 1—4, 2 pi.). 
In this paper Miss Lister describes a new genus, Leptoderma , with 
one species L. iridescens. The genus is diagnosed: Sporangia sessile 
or shortly stalked; sporangium-wall membranous, hyaline in the upper 
part, in the lower part thickened with granular deposits, and sometimes 
including minute crystalline scales of carbonate of lime. Stalk black, 
enclosing refuse matter. Capillitium consisting of rigid, branched, and 
anastomosing black threads. Spores purplish grey. L. iridis cens occurs 
on Pine-bark, twigs, leaves etc. and has been found in England, Scotland, 
Switzerland and Germany. Two other new species are described, Diderma 
arboreum G. Lister et Petch, from Ceylon, Japan and Scotland and Dia- 
chaea cerifera from Norway, Germany and Japan. J. Ramsbottom (London). 
