750 TUBERACEI. 



2261. Elaphoxnyces granulatns. Fr. " Granulated 



Elaphomyces." 



Mycelium yellowish, soon vanishing ; cortex yellow, at length 

 tawny and brown, minutely papillate ; papillfe adpressed, obtuse, 

 or punctiform ; peridium fragile, whitish, or reddish, when dry 

 white ; asci 1-8 spored ; sporidia thick, rufous, or blackish 

 purple. — Fr. SM. iii. p. 58. Vitt. Lycop. t. 3,/. 7. Tul. Hyp. f. 

 19,/. 4. Berk, exs.no. 27 9. Ann. Sc. JSTatXYlt. i. f. 3,t.2,f.7, 

 t. 4,/. 3. Sturm, iii. 19-20, t, 8. Eng. Fl. y.p. 306. Nees.f. 147. 

 Berk Ann. N.H.no. 211, t. 11,/. 10. 



In dry^eathy ground. [Low. Carolina.] 



The central substance when young is tender and juicy, and consists of 

 filaments spotted with fertile patches. The filaments of the interstices are 

 loose, and but little complicated, whereas those of the fructifying spots 

 are more closely packed, short, and branched, their tips swelling, and 

 gradually giving rise to large globose utricles, containing the sporidia. 

 Sporidia *025-"03 m.m. diameter. (Fig. 354.) 



Order XXX. PHACIDIACEI. 



Receptacle more or less coriaceous or carbonaceous ; disc at 

 length exposed by the regular or irregular fissure of the outer 

 coat. — BerJc. Outl.p.879. Litr. p. 283. 



The perithecia are elongated, sometimes branched, or, when circular, rather 

 orbicular than spherical. In the linear species the form of the aperture de- 

 pends upon the form o*f the perithecium,or excipulum,the margins of which 

 are rounded. In other cases the disc is exposed by the mere fissure of the 

 walls, as in Phacidium, and this fissure may either be simple or compound, 

 radiating from a central point, and forming triangular lobes.— Berk . Intr. p. 

 283. 



Perithecia bursting with valvular teeth . . Phacidmm. 

 Perithecia globoso-depressed, at length open . Heterosphceria. 

 Perithecia confluent, opening by flexuous fissures Rhytisvia. 

 Perithecia labiate, splitting from the centre. . Trihlidium. 

 Perithecia labiate, opening longitudinally . . Hysterium. 

 Perithecia horny, sporidia united at the base . Sporomega> 

 Perithecia flexuose, lips divergent . . . Colpoma. 

 Perithecia linear, simple or branched, asci sac- 

 ciform Ailographum. 



Perithecia stellate Actklium. 



Perithecia stipitate, wedge shaped . . . Lophiv.m. 



Perithecia orbicular, with a deciduous operculum Stegia. 



Disc innate, erumpent Trochila. 



