DESCRIPTION OF PLATES. 443 



Fig. 46. — a, LachneUa bicolor, a group the nat. size; b, three cups 

 enlarged, in different stages of growth ; c, section of a cup ; d, three 

 ha rs from the exterior of a cup ; e, an ascus with two acerose para- 

 physes; /, five sporidia. d, e, and/ x 400 times. 



Fig. 47. — a, LachneUa pteridis, a group the nat. size ; b, two cups 

 enlarged, one young, the other more mature ; c, a section of a cup ; 

 d, a group of hairs from the exterior of a cup ; e, an ascus with a para- 

 physis ; /, seven sporidia. d, e, and/ x 400 times. 



Fig. 48. — a, LachneUa hyalina, a group the nat. size ; b, two cups 

 in different stages of growth, magnified ; c, a section of a cup ; d, two 

 asci ; e, six sporidia. d and e x 400 times. 



Fig. 49. — a, LachneUa ru/o-olivacea, the nat. size; b, a cup mag- 

 nified 10 times ; c, a section of a cup ; d, loose brown cells from the 

 exterior of a cup ; e, two asci, the one filled with coarse granular pro- 

 toplasm, the other in which the sporidia are matured, with a clavate 

 paraphysis ; /, four sporidia in different stages of development, the 

 pseudo-septate ones being the most mature. 



Fig. 50. — a, Tapesia aurelia, a group the nat. size seated on a frag- 

 ment of an oak-leaf; b, two cups enlarged, of different ages, showing 

 the white tapesium from which they arise ; c, a section of a cup ; d, a 

 portion of the tapesium ; e, asci and paraphyses ; /, seven sporidia in 

 different stages of growth, d, e, and/ x 400 times. 



Fig. 51. — a, DesmaziereUa aciccla, three cups nat. size ; b, section 

 of a cup magnified, showing the hairy hymenium ; c, one of the rigid 

 hairs of the exterior ; d, an ascus ; e, a bundle of paraphyses divided 

 at the top in the form of bristle-like points, which rise above the 

 surface of the hymenium ; /, four sporidia. d, e, and/ x 400 times. 



Fig. 52. — a, Pirottsea vectis, a group the nat. size ; b, two cups mag- 

 nified ; c, a section of a mature cup ; d, a group of the rigid bristles from 

 the margin of a cup ; e, asci and paraphyses ; /, five sporidia in different 

 stages of growth, showing their variable shape, d, e, and / x 400 

 times. 



Plate IX. 



Fig. 53. — a, Boudiera areolata, a group the nat. size : b, b, two 

 cups magnified ; c, a section ot a cup ; d, an ascus with paraphyses ; 

 e, sporidia. d and e x 400 times. 



Fig. 54. — a, Ascobolus viridis, three cups the nat. size ; b, a section 

 of a cup ; c, an ascus with paraphyses ; d, three sporidia. 



Fig. 55. — a, Saccobolus violaceus, a group the nat. size ; b, a group 

 slightly magnified ; c, a section of a cup ; d, asci and paraphyses ; 

 e, eight sporidia removed from the ascus and still enclosed in a cell, 

 which was developed within the parent ascus ; /, three sporidia 

 detached from the group, d, e, and / x 400 times. 



Fig. 56. — a, Thecotheus Lelletieii, a group the nat. size; b, two 

 cups magnified ; c, an ascus filled with sporidia ; d, the summit of an 



