632 MTJCOEINI. 



globose, yellow, then olive ; columella minute. — Berh. Ann. 

 N.ILno.22b.tA2,f.l6. 



On cut stnmiis of Aucuhajaponica. May. Apethorpe. 



Forming' small pulvinate orange-ochre spongy masses, which, while there 

 is abundant nutriment, do not fructify, but wlien gathered produce a forest 

 of exceedingly minute globose yellow sporangia, not visible to the naked eye, 

 at length becoming olive ; columella very small, and little more than a slight 

 swelling of the top of the stem. — M. J. B. 



1890. Mucor hyalinus. Coohe. *' Hyaline Mucor." 



CoNiDiA. Sterile flocci effused, fertile somewhat branched ; 

 conidia rose-coloured, oblong, subfusiform. — Penicillium roseum. 

 Link. Fr.S.M.m.pAOd. £, 4' Br. Ann. N.H.no. 636. 



Sporangia. Hyphasma creeping, profuse ; flocci white, erect, 

 branching ; branches simple, sometimes divided, terminated by 

 a delicate, hyaline, globose sj)orangium, containing minute sub- 

 globose sporidia. — Cooke exs. no. 359. Fojy. Sci. Rev. Jan. 18JB1, 

 t. 68, Jig. 5. '> '-■ ^  ^.t^t A, ^y^ , c , ;? ^ '-J* 



On leaves of box. Winter. 



Forming a dense white coating over the leaves, mixed with Penicillium 

 roseum, Link, of which it appears to be the mature condition. Thesporan^a 

 are small and very delicate, so as to be made out with difficulty. In habit 

 very much like the PenicilUum, but without any roseate tint. 



1891. Mucor delicatulus. Berk. " Delicate Mucor." 



Fertile flocci simple, abbreviated, of the same thickness as 

 those of the mycelium ; sporangia globose, pale yellow ; sporidia 

 globose. — Berk. Eng. Fl. r.p. 332. 



On rotting gourds. Autumn. Apethorpe. 



So small as to be scarcely perceptible to the naked eye, forming a velvety 

 stratum, saturated with the juice of the matrix; sporangia at first white, 

 then very pale yellow, sometimes apparently springing immediately from 

 the branched, septate mycelium, and decumbent. — M.J.B. 



1892. Mucor tenerrimus. Berk. " Slender Mucor." 



Scattered, minute, wholly white ; stem flexuous above, apex 

 clavate; head with a globose columella. — Berk. Outl. p. 407. 

 Tlydrophora tenerrima, Berk. Hook. Journ. 1841, />. 78, t. i.f. B. 



On sticks in woods. 



Scarcely visible to the naked eye ; stem a little flexuous above, ending in 

 a clavate swelling, beyond which is the globose columella, from the base of 

 which is deflected all round over the apex of the stem a delicate frill which 

 at first formed a portion of the pendulum, and by its rupture leaves a large 

 circular aperture at its base. Sporangium quite smooth, of two membranes 

 often separated, sometimes in close contact ; sporidia elliptic, filling the 

 cavity between the columella and the inner membrane.— J/./. ^. 



