MYCETOZOA FROM AEOSA, SWITZERLAND 99 



previous year's flower-stalks, decayed and hollow within, which, 

 when split open, usually showed the tracks of plasmodium that 

 had chosen this sheltered situation in which to creep, feed, and 

 often also to form sporangia. Here Perichcena vermicularis 

 abounded. Higher on the hills, where patches of winter snow 

 still lingered or had recently lain, on the sodden brown turf were 

 found such species as Physarum vernuvi, Didymium Wilczekii, 

 Lcpidochrma Garestianum, and other cold-loving Mycetozoa. 



The following is a list of the forty-eight species we found, 

 one of which appears not to have been previously described. 



Ceratiomyxa mucida (Mueller) Macbr. Abundant during the 

 last weeks of July on spruce logs. The typical form only was 

 found. 



Badhamia alpina, n. sp. Plasmodium pale yellow or yellow- 

 ish white. Sporangia sessile, clustered or scattered, subglobose, or 

 hemispherical on a broad membranous base, 0-5 to 0-9 mm. diam., 

 grey, or dark brown and iridescent when without lime, usually 

 seated on a dark horny layer of hypothallus over which are 

 scattered deposits of lime-granules ; sporangium-wall membranous, 

 fragile, with or without scanty deposits of lime granules. Capilli- 

 tium a dense network of slender tubes, expanded at the nodes, and 

 containing scanty deposits of lime. Spores greyish-lilac, very 

 faintly warted, 10 to 12 jx diam., average 11 /u. Found in some 

 abundance on and inside hollow scapes of Cirsium spinosissimum 

 and Senecio alpinus, above Arosa, 7000 ft. alt. This species closely 

 resembles B.foUicola Lister, from which it is distinguished by the 

 pale colour of the plasmodium, the more hemispherical sporangia, 

 and the pale nearly smooth spores. From B. panicea Eost. it 

 differs in the yellow not creamy white colour of the plasmodium, 

 the much closer network of the often limeless capillitium, and 

 paler spores ; it differs also in the absence of any red colour at the 

 base of the sporangium and of the strands of brownish-red hypo- 

 thallus which usually characterize B. panicea. We had received 

 previously three specimens of B. alpina from Graubunden gathered 

 by Prof. A. Volkart, viz. one from Trimmis, at 5300 ft. alt., on her- 

 baceous stalks, June, 1903, and two others from the Furstenalp at 

 5300 ft. and 6000 ft. alt. respectively, June, 1901, on dead raspberry 

 twigs and old stalks of Veratnim album. M. Ch. Meylan has also 

 gathered this species sevei'al times near Ste. Croix in the Jura 

 Mts. A specimen found by Dr. E. E. Fries "in regione subalpina," 

 2600 ft. alt., at Areskutan, Jamtland, Sweden, in August, 1905, 

 appears also to be B. alpina. All these specimens we formerly 

 regarded as forms of B. foliicola with unusually pale and smooth 

 spores before we realized how constant this character is, and that 

 it is associated with pale plasmodium. 



Badhamia foliicola Lister. This first attracted our attention 

 by numerous patches of bright orange plasmodium found creeping 

 over twigs, fir-needles, grass and herbage under a spruce tree. 

 By marking the spot we were able in a few days to collect fine 

 clusters of the mature inconspicuous grey sporangia. The spores 

 are violet-brown, 10 /t diam., and distinctly spinulose. This 



