SCIENCE- GOSSIP. 



L07 



lieaps, such as Badluimia avupora Racib., Plnjsarum 

 straminipes List., and Diclymium Troclms List. 



A few species seem indifferent to their environ- 

 ment, of which we may specify Didymitini diffuswn 

 Link., and D. difforme Duby. 



Sphagnum niay be credited with two species in 

 Great Britain. These are Badliamia lilacina Rost., 

 from Pilmoor, Yorks, found by Miss G-. Lister, 

 and Flitwick, Beds ; also Chondrioderma simplex 

 Schroeter, Perthshire, by Miss G. Lister, and in 

 Merionethshire. 



Of the widely distributed genus TrioMa and its 

 allies, Hemttriohia and Oligoneina, no representa- 

 tives have as yet been found by us on either 

 decayed straw- or leaf -heaps. The only exception 

 is furnished by a small gathering that has recently 

 been obtained from a straw-heap at Chaul End. 

 The sporangia present the general appearance of a 

 TriGhia, but under the microscope the capillitium 

 is seen to unite certain characters of both this 

 genus and of Perioliaena. It will be expedient to 

 await the rediscovery of this peculiar form before 

 ■expressing a definite opinion as to its exact position 

 in the accepted system of classification. 



It is desirable that it should be understood that 

 these observations have reference only to what is 

 known as to the habits of the Mycetozoa in Great 

 TBritain ; and it will be readily understood that in 

 tropical countries vegetable refuse would consist 

 ■of the remains of plants that are natives of tho.se 

 ■districts,' or are cultivated in them. 



An interesting fact has come to hand in a letter 

 irom Miss G. Lister whilst this article was in pre- 

 paration, which is that FuMgo elUsospora List, is 

 not uncommon on old straw in Iowa, U.S.A., which 

 ■coincides with the only known observation of this 

 species in Great Britain. 



In explanation of the following list it should be 

 stated that the term " wood " includes rotten 

 branches, tree trunks and stumps. " Straw " in- 

 cludes the refuse and haulms of cereals, peas, 

 'beans, and the agrarian weeds associated with 

 them. " Leaves " include also the twigs of wood 

 lusually found in such situations. 



Wood, straw. Leaves. 

 ■Ceratomyxa mucida, Shroete] 



Badhamia hyalina, Berk. 



B. utricularis. Berk. 



E. folliicola. Lister 



B. nitens. Berk. 



B. panicea, Rost. . 

 iB. ovispora, Racib. 

 J3. lilacina, Rost. On sphagn 



B. rubiginosa, Rost. 

 Physarum leucopus. Link. 

 P. murinum. Lister 

 P. citrinum, Schum. 

 P. psittacinum, Ditm. . 

 P. viride, Pers. 

 P. nutans, Pers . . 



var. leucophaeum 



Wood. Straw. Leaves 



Physarum calidris, Lister 

 P. compressum, Alb. & Schw. 

 P. straminipes. Lister. , 

 P. clidermoides, Rost. . 



var. lividum. Lister. . 

 P. crateriachea, Lister. Also 



decayed ragwort stems . 

 P. cinereum, Pers. 

 P. bivalve, Pers. . 

 P. diderma, Rost. 

 P. contextum, Pers. 

 P. conglomeratum, Rost. 

 P. vernum, Somm. 

 P. rubiginosum, Fries. . 

 Fuligo septica, Gmel. 

 F. ellipsospora. Lister. The only 



Eurpean record 

 Craterium pedunculatum, Trent 

 C. leucocephalum, Ditm. 

 C. mutabile, Fr. 

 Leocarpus vernicosus, Link. 

 Chondrioderma spumarioides,Rost 

 C. testaceum, Rost. 

 C. michelii, Rost. . 

 C. reticulatum, Rost. 

 C. niveum, Rost. . 



C. radiatum, Rost. 

 Diachaea elegans, Fries. 



D. subsessilis, Peck. 

 Didymium difforme, Duby. . 

 D. trochus, Lister, sp. nov. 



D. dubium, Rost. Chiefly iv 



leaves .... 

 D. serpula, Fr. 

 D. clavus, Rost. 

 D. farinaceum, Schrad. 

 D. nigripes, Fr. 

 D. effusum. Link. . 

 Spumaria alba, DC. Also 01 



grass .... 

 Lepidoderma tigrinum, Rost. 

 Stemonitis fusca. Roth. 



var. confluens 

 S. splendens, Roth. 

 S. ferruginea, Ehrenb. . 

 S. smithii, Macbr. . 

 Comatricha obtusata, Preuss. 

 C. laxa, Rost. 

 C. typhoides, Rost. 

 C. persoonii, Rost. 

 C. rubens. Lister . 

 Enerthenema elegans, Bowm. 

 Lamproderma phy saroides, Rost. 

 L. arcyrionema, Rost. . 

 L. irideum, Mass. . 

 L. violaceum, Rost. 

 Brefeldia maxima, Rost. 

 Lindbladia tubulina. Fries. . 

 Cribraria argillacea, Pers. 

 C aurantiaca, Schrad, . 



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