

THE MYCETOZOA OF THE EAST RIDING. 205 



TRICHIACE^. 



Trichia affinis de Bary. 



Bale Wood, Aldborough, Jan. 6, 1904. One gathering of this date 

 has a capillitium consisting partly of thick elaters as in T. favoginea, 

 and partly of rough threads without spirals as in Perichcena, with large 

 expansions. The capillitium forms a network as in Hemitrichia, and 

 the two forms pass into one another. The sporangium wall is papillose. 

 The spores are those of T. affinis, the modifications of the other parts 

 being due to the severe frost which prevailed whilst the sporangia were 

 ripening. 



Trichia persimilis Karst. 



Bale Wood, Aldborough, Aug. 21, 1903; very abundant, Jan. 6, 1904; 

 Aug. 24, 1904. Tansterne, Jan. 5, 1904; Aug. 25, 1904. Hornsea, 

 plantation north of the Mere, May 28, 1904 ; Aug. S, 1904. Boynton, 

 Yorks. , British Museum collection. Lister, Mon. p. 167. Strickland 

 (loc. cit.) does not record T. persimilis, but gives T. chrysosperma DC. 

 (= T. favoginea Pers. ), North Wood, Feb. 8, 1880; this is no doubt the 

 gathering referred to by Mr. Lister. 



Trichia scabra Rost. 



Hornsea, abundant on fallen tree in the plantation north of the Mere, 

 May 28, 1904. 



Trichia varia Pers. 



In stickheaps and hedges, Hedon, Dec. 26, 1902 ; Jan. 1-3, 1903 ; &c. 

 Rose Hill, on a decaying Pleurotus, Dec. 29, 1903. Newton Garth, 

 Dec. 29, 1903. Filey, June 1, 1903. Thorp Garth, Aldborough, Aug. 

 7, 1903. Bale Wood, Aldborough, Aug. xt, 1903, &c. Thearne, Jan. 

 2, 1904. Humbleton, Jan. 5, 1904 ; May 26, 1904. Tansterne, Jan, 5, 

 1904. 



Trichia contorta Rost. 



Hospitals, Hedon, Dec. 29, 1903. Thearne, Jan. 2, 1904. Ald- 

 borough, Jan, 6, 1904. Tansterne, Jan. 5, 1904. 



Trichia lutescens List. 



Dryham near North Cave, Aug. 29, 1903, on sticks, probably haw- 

 thorn, forming a fence whose base rested on swampy ground by the 

 roadside ; the sporangia were only slightly attached, and many fell off 

 when cutting up the sticks. The sixty-six sporangia mentioned by Mr. 

 Lister were only part of the original growth. " The gathering consists 

 of sixty-six subglobose chrome yellow sporangia from 0.4 to 0.7 mm. 

 diam. ; the membranous sporangium-wall is quite free from granular 

 deposits, and the abundant pale yellow elaters are mostly long and often 

 forked, though a few can be found not exceeding 90 fx ; they are from 

 3 to 4 fi in thickness, and are faintly marked with about four spiral 

 lines ; the spores are yellow, minutely spinulose, 10 fx. diam." (Lister, 

 Journal of Botany, vol. 42, p. 136). 



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