Cytispora.] fungi. 281 



A most curious and elegant fungus, exactly resembling a minute 



bivalve shell, placed with its edge upwards. The production figured by 

 BuUiard, t. 444. f. 4. and Sow. ! t. S15. f. 9, is clearly not referrible 

 to this species, judging from the figures alone, but rather to the genus 

 JEustegia. On an inspection of specimens however I am quite convinced 

 that Sowerby was right in his conjecture that they are the nidus of some 

 insect. 



2. L. eldtum, Carni. {elongated Lophiuni) ; stipitate com- 

 pressed black transversely striate dilated gradually upwards 

 into an elongated wedge-shaped peritheciuni. Grev. Sc. Crypt. 



FL t. 177. j: 2. Fr. El. 2. p. 113 Hysterium datum, Carm. 



3ISS. 



On Fir wood. Appin, Captain Carmichael. — Apparently extremely 

 rare, as no species remain in the Appin collection. 



58. SPHiERON^EMA. Fr, Spliceronsema. 



Peritheciiim opening by a pore including mucous sporidia in a 

 very delicate sac, which at length ooze forth and harden into a 

 globule. — Name tr^a/^a, a sphere, and va//xa, gelatine, 



1. >S'. siihuhituyn, Tode, (aivl-skaped SpIiaro7icema) ; porithecia 

 grumous between conical and awl-shaped acute yellowish, 

 globule paler. Fr. Obs. Myc. 1. p. 187. Sckr. Sued n. 325. 

 Grev.! S'c. Crypt. FL t. 189. — Sph. suhulata, Tode, Fung, 

 Meck.f. 117. Fers. Syn. p. 94. 



On hard blackened Agarics. Not common. Near Edinburgh. Tnr- 

 bet, J)r. Greville. Appin, Captain Curtnichael. Cambridge, Rev. M. 

 J. Berkeley. — At first sight resembling a Stilhum. It varies considerably 

 in form, being sometimes almost linear. It should seem, from Dr. 

 Greville's figure and observations, that in an early stage there are either 

 asri or parapliyscs. I have myself seen threads njixed with the sporidia 

 after their ejection. It is singular that this is the only species which 

 has hitherto fallen under the notice of British mycologists. 



59. Cytispora. Ehrenh. Cytispora. 



PcritJiecia celluloso-niultilocular ; cells irregular, membrana- 

 ceous, united above. jXucleus gelatinous, at length oozing out 

 in the form of a globule or tendril. — Name from xuro;, a si/tuous 

 cavity, and cropo;, a seed. 



1. C. ruhcsce?is, Fr. (ruddy-seeded Cytispora); cells set in a 

 depressed conceptaculum, disc erunipent dirty-brown, tendrils 



reddish. Fr. Sysf. Nye. v. 2. p. oAJ Bostrychiuni rubesccns, 



Scltr. Sued n. 109. 



On the bark of various Rosarrw. Abundantly on the Mountain- 

 ash. King'.>> Clitfe, Norths. Jhv. M.J. litrlulcy. — At first resembling 

 tjinall air-bladcltrs bursting through the cuticle; then furnished with a 

 white and at length dingy-brown disk, with a single orifice in the centre. 

 Tlic cells are contained in a flattish black conce|)taculum, exactly as in 

 the Sjdiaria- of the division InruMr. Spuridia rcdilish, very minute, 

 oblong, as is the case in every Cytispora I have examined. 



