16 14 Proceedings of the Royal Irish Academy. 



Pleurotaenium truncatum (Breb.) Nag.— L; Cr, 412x42//; W; C, 425x56//. 

 var. Parqiiliarsonii (Boy and Biss.) W. & G. S. West. — L, 

 252 x 37-5/*. 

 Tetmemorus Brebissonii (Menegh.) Ealfs.— S, 145x32/*; M, I, C; L>, 

 1 51 x 33/* ; CP : W, 1 00 x 26/*. (.Plate I, fig. 8.) 



var. minor De Bary.— C ; D, 70 X 20/*, 62 x 16/*, 67 X 18/*. 

 granulatus (Breb.) Bait's.— C ; D ; 160 x 30/*; IT, SL, L, CI, "W,B, CP. 

 laevis (Kiitz.) Ealfs.— AS, CP ; D, 72x18/*; C, 82x21/*, 75x20-7/*; 

 CI, W, VL; S, 80 x 19/*. This was with zygospore S. of Dugort. ends 

 retuse, sides almost straight (slightly convex), greatest length and 

 breadth 71x47/*. (PL 1, fig. 10.) 

 minutus De Bary. — W, LG; L, average size 57 x 17'5/*; 1), 58x19/*, 

 also 62-65 X 18-3/* from another gathering. 

 Euastrum ampullaceum Ealfs. — C. 

 affine Ealfs.— W. 



ansatum Ealfs — C. M, IT, L. W, VL, Cr ; D, 76 X 39//, 78 X 35/*. 

 bidentatnm Nag. — IT. L; D, 52-5-58x35-36/*, frequent; W, frequent: 



B, VL, S ; C, common in many places, 50 x 36/*, also 55 X 37*5/* ; 

 CP ; M, 46 x 34/. ; Cr. 



binale (Torp.) Ehrenb.— C, 18-20x14-16/*, also 14-3x11/*; W, Cr, 



C, P, D. 



f. secta Turn. — I), a small form, 16 x 11//. 



f. Gutwinski Sehmidle. — C, 23-4x17/* (average size); W, CP, 

 Cn ; D, 26-6-29 x 20-21//. 



var. subelobatum West. — C. 



var. retusum West. — C. 



f. Mans "West.— IT, B, I, LG. M. 



f. minor West,— C, 10-12/* long, 9-11/* wide; D, 11-11-5/* 

 broad, 11-12/* long, 

 crassicolle Lund. — C. 



crassnm (Breb.) Kiitz.— M, LG, W ; D, 165 x 78-81//. 

 crispulum (Xordst.) W. & G. S. West,— C. 

 euneatum Jenner. — D, 138 x 65/*, isthmus 18//, a large form, 

 denticulatum (Kirchn.) Gay.— C, <>4 x 18-6/*; M,IT, L, W, S, Cn. 

 Didelta (Turp.) Ealfs.— C, W ; CP. 154 x 86/*. 

 dubium Xkg. — C, up to 36 x 21-6// ; L. 

 elegans (Breb.) Kiitz.— C, 27-5 x IS/* ; IT, SL, LG, I, B. W. D. VL ; Cr, 



30 x 19/*; M, 29 x 17-5/*. 

 erosnm Lund. — C. 

 gemmatum Breb. — W. 



