[85 



Nectria. 



Perithecia yellow or red in colour, and generally produced 

 in close tufts on stroniata of the same colour. The asci con- 

 tain eight bicellular spores and few or no paraphyses. Conidia 

 of various kinds and shapes are also produced. 



Nectrina cinnabarina Fr.^ (Britain and 1^.8. America). The 

 bright-nnl, button-sliaped conidial cushions of this iuugus may 



Fn;. n.— Nectria cinnabar uw., with pcri- 

 thucia on the dead bark of a still-living 

 stem of Elm. Infection lias evidently 

 betciin at the wound of a cut branch near 

 the middle, and extended outw.ards. (v. 

 Tubeuf phot.) 



Kiii. ~S.—Neclria cimiaUirina. Portion of 

 Ijraiich (magnified). Light-coloured cushions 

 of conidiophores with conidia .are breaking out 

 towards the upper end, and colonies of hard 

 red perithecia towards the lower end. (After 

 Tulasne.) 



be found almost at any time on the dead branches of many 

 deciduous trees, c.ff., Aesculm, Acer, Tilia. Moms, Ulmus, etc.; 

 also on Loniccra, Samhitcm, RoUiiia, and Pijms, in America.- 



' Tulasne, Select fnwi., 1865. 



-Behrens {Zeitsch. f. Pfianzenkrankheiten (1S95) ascribes to Xf.rtria the very 

 common tuberous swellings on the twigs of Abies balsamea ; these, however, 

 may arise without the agency of the fungus. 



