788 SPH^RIACEI. 



2369. Nectxia Russeliana. 3font. " Russel's Nectria." 



CoNiDiA. — Tufts small, scattered, rose coloured, at first sur- 

 rounded by erect flocci ; conidia fusifonn, extremely minute, 

 becoming paler by age. — Choeiostroma huxi,Debat. Ann. Sc. Nat. 

 ix. 1858. Fnsisj'iorium bnxi, Eng. Fl. Y.p. 352. Berk. exs. no. 55. 

 VoluteUa buxi, Berk.Outl.p. 340. Fckl. exs. no. 211 . 



AscoPHOP.E. — Small ; peritbecia gregarious, globose, orange- 

 yellow, at length tawny, beset with hairs ; sporidia fusiform, 

 IhiMSQ.— Mont. Syllp. 224. B. ^' Br. Ann. N.H. no. 898. Tul. 

 Carp. \\\.p. 98. 8tigmatea Rousseliana, Fckl. Sym. Myc.p. 97. 



On box leaves. Twycross. 



var. |3. vixidis. Perithecia when dry presenting nearly 

 black specks, when moistened, green, beset with scattered hya- 

 line hairs ; sporidia elliptic ('0007 in.) hyaline. — B. ^' Br. Ann. 

 N.H.no.SdS. 



On box leaves. Batheaston. 



var. y. fulva. Perithecia straw-colour or brick-red ; spori- 

 dia broadly almond-shaped, •0(j04-'0005. — Sph. fulva, Fr. El. ii. 

 p. 90. Berk. Ann. N.H. no. 182. Curr.Linn. Trans, xxii. t. b7,f. 

 5. Fckl. exs. no. 207. 



On box leaves. Milton, Norths. 



2370. Nectria umbxina. Fr. " Umber Nectria." 



Gregarious, ovate, obtuse, minutely papillary, umber, often 

 pruinose at the apex ; sporidia? — Fr.S.V.S.p.388. Berk. Outl. 

 p. 394. Sph. iimhrina, Berk. Eng. Fl. v. p. 264. 



On decaying bean stalks. Dec. Apethorpe. 



B. Xylariei. 



Stipitate — 



Stroma corky, subclavate .... Xylaria. 



Stroma rather corky, discoid .... Poronia. 

 Shrubby or simple — 



Perithecia of substance of stem . . . Thamnomyces. 



Sessile — 



Stroma convex or plane Hypoxylon. 



Stroma expanded, pulverulent . . . Ustulina. 



Stroma discoid Nummularia. 



Stroma fused with matrix .... Eutypa. 



Stroma globose Melogramma. 



Stroma llesby, epipbyllous .... Poly stigma. 



Perithecia Lone, nucleus immersed in the stroma . . Dothidea. 



