170 
complicated with gyrose lacunez, leading to the surface; asci 
oblong ; sporidia globose, tuberculate ; the asci are arranged in a 
single row at the sides of the lacune. 
H Tulasnei B. and Br. Annals Nat. Hist. lc. Spye Park, 
in sand under beech trees, August, 1843; Stourhead, Wilts, 
in similar places. 
GENUS 281. HYDNOBOLITES.* Tul. 
Fungi Eypogeei, p. 126, Is. 4, 14. 
Integument replaced by white, evanescent down; hymenium 
complicated with sinuous lacune, ending at the surface ; asci 
elliptic ; sporidia globose, reticulated ; the asci are arranged in 
several rows at the sides of the lacune. 
H——— cerebriformis Tul l.c. Stapleton Grove, near Bristol, 
1845, Leigh Woods, &c. ; the only species. 
GENUS 282. SPH@ROSOMA.t AKI. 
Common integument altogether wanting; hymenium exposed, 
even or rugose, solid or lacunose ; asci linear; sporidia spherical, 
tuberculate, dark brown. 
Ss — ostiolatum Jul. MSS. B. and Br. Annals Nat. Hist., 
Ser. i, Vol. xviii, p. 79. Hanham, near Bristol, under dead 
leaves in loose soil, November, 1845. This plant has not 
been met with since in Britain till 1882, when several 
specimens were found by Messrs. Phillips and Plowright in 
Shropshire. 
GENUS 283. BALSAMIA.[ Vitt. 
Tuberacei, p. 30. 
Common integument warty; hymenium complicated with 
distinct lacune, not leading to the surface ; sporidia cylindrical or 
oblongo-elliptic, even, pellucid. 
* From udnon a truffle, and Boletus ? 
+ From sphairos round, and soma a body. 
t From Dr. Joseph Balsamo, an Italian botanist. 
