New British Miero-Fungi. By G. Massee. 759 



head of conidia ; conidia broadly obovate, uniseptate, slightly con- 

 stricted at the septum, apical segment largest, base apiculate. 



On damp decaying branches, Scarborough. The nodes are 

 covered with minute spicules arranged in a spiral, to which 

 the conidia are attached. The conidia readily germinate within 

 a few hours when placed in water ; usually one filament springs 

 from the apical segment close to the sejjtum, this elongates 

 for some distance, when the contents of the conidium pass into it 

 and it developes into a much branched, septate, procumbent, floccose 

 tuft. At this stage growth was arrested owing to desiccation, but 

 from an examination of the fully developed plant, the fertile flocci 

 appear to originate as erect lateral branches from the procumbent 

 vegetative mycelium. 



Very distinct from A. superha Corda, which is pure white with 

 oblong conidia divided into two equal parts by the septum. 



Corda's two genera Arthrohotrys and Gonatobotrys would 

 appear to be too closely related ; the most important point of dis- 

 tinction consists in the latter having unilocular conidia, and in 

 Gonatobotrys simplex Corda, which is not uncommon in this dis- 

 trict, I have occasionally met with uniseptate conidia along with 

 the normal eseptate ones. 



Corepthoris paradoxa Corda (figs. 13-15). Gregarious ; stem 

 erect, yellowish - olive, clavate, composed of numerous slender 

 flocci ; apical portion barren, the remainder with numerous septate 

 compound branches, some of which bear heads of simple elliptical 

 conidia ; branches and conidia brownish olive. 



On an old shoe in a damp ditch, growing along with Ascobolus 

 saccliarinus B. and C. Agreeing with Corda's figure of this 

 species given in ' Prachtflora,' except that the stem has a brighter 

 yellow tinge. 



Corepdhoris epimyces n. sp. (figs. 16-18). Gregarious; pure 

 white ; stem conical, composed of a bundle of flocci ; branches 

 simple or compound, springing from every part, except the expanded 

 ba.se, septate, patent, some supporting subglobose heads of conidia ; 

 conidia colourless, hyaline, linear-oblong, obliquely apiculate. 



On decaying Ayaricus (Mycena) purus P. along with Mucor 

 fusiyer Link. Scarborough. 



This plant, on account of its conical stem and colourless conidia, 

 does not quite agree with Corda's generic character, as given in 

 * Prachtflora,' yet as the two plants in all important points are so 

 clos'dy allied, an emendation of the genus seems preferable to the 

 establiKhment of a new one. The following is Corda's definition of 

 the genus, and if the bracketed portions are omitted, it would 

 inclu'le both species : — " Corepthoris. Stroma ercctura, primum 

 simplex, [subclavatum], dein supra multifidum, e fibris longissirais, 

 simplicibus, intricatis constipatum, infra ramulis fertilibus hetcro- 



'A u 2 



