Description of the Figures. 351 



Fio. 181. Two spores of same, showinj^ tlie extreme variations of inarkin<,'s ; 



a, having the bands all united to form a network ; 6, having 



the bands not at all combined, x 1200. 

 „ 182. Portion of an elater of same, x 1200. 

 „ 183. Trichia pmynrascens, Nyl., plants, x 40. 

 „ 184. Spores and elaters of same, x 350 ; portion of a spore, x 1200. 

 „ 185. Oligonema Broornei, Mass., plants, x 40. 

 „ 186. Spores and elater of same, x 350. 

 „ 187. Leocarpns fragilis, Rost., plants, x 25. 

 „ 188. Pale-coloured form of same, x 25. 

 „ 189. Portion of capillitium and spores of same, x 350 ; portion of a 



spore, X 1200. 

 „ 190. Fnlujo varians, Rost., a small specimen ; nat. size. 

 „ 191. Section of same ; nat. size. 



„ 192. Portion of capillitium and spores of same, x 350. 

 „ 193. Oligonema liitois, Host., <^TOu^ oi 'pl&nts, x 40. 

 „ 194. Portion of capillitium of same, x 350. 

 „ 195. Spore of same, x 1200. 



PLATE 8. 



. 196. Physani/m tenerum, Rex., x 100. 

 197. Ophiotheca Wrightii, Berk, and Curtis ; portion of capillitium 



thread, x 1200. 

 19«. Ophiotheca vermicnlaris, Mass., portion of capillitium thread, 

 X 1230. 

 198a. Spore of same, x 1200. 



199. Ophiotheca reticulata, Mass., group of specimens showing various 



forms of the venulose plasmodiocarp, x 50. 



200. Portion of same showing the numerous free arms, o, a, of the 



capillitium, and the attachment of the latter to the wall of the 

 sporangium, 6, x 600. 



201. Orc^della operculata, Wingate ; two entire specimens ; a, the 



deciduous operculum, x 100. 



202. Lamproderma Listen, Mass. , showing a specimen after the dis- 



appearance of the sporangial wall, and the dispersion of the 

 spores ; a, stem, passing into the hypothallus, b ; c, remains of 

 the wall of the sporangium, which forms a frill round the apex 

 of the stem ; d, columella, which in the present specimen is 

 expanded in an irregularly discoid manner at the apex ; e, 

 threads of the capillitium which originate from the discoid 

 apex of the columella, x 400. 



203. Spore of same, x 1200. 



204. Lachnobolxs gJobos)is, Schweinitz. A specimen growing on a 



spine of the involucre of the sweet chestnut ; o, the basal per- 

 manent portion of the sporangium, x 100. 



