OF CEETACEOUS PLANTS. 273 



1902. SphcBfites cretaceus, Meachinelli, Fungor. foss. omnium 

 Iconog., p. 21, pi. X, figs. 6, 6 a. 



" Sph. peritheoiis numerosis, orbiculatis, l-lj mm. latis, 

 ostiolo rotundato pertusis." 



Host. — Leaf of Viburnum zizy^ofioides. 



HoBizoN. — Upper Cretaceous (Patoot Beds). 



LocALiir. — Greenland. 



Heer's description (1883 A, p. 1) is followed exactly by 

 Mesohinelli, who adds nothing new to the original short state- 

 ments concerning this doubtful fossil. It is, however, as Heer's 

 original figure shows, rather more likely to be a fungus than 

 most of the circular markings on leaf-impressions which are 

 described as such. 



Sphserites problematicus (Knowlton), Meschinelli. 



1892. Sphceria problemaika, Knowltoii in Lesquereux, Flora 



Dakota Group, p. 23, pi. xxxi, figs. 2, 2 a. 

 1895. Spheerites 2»'oblematicus, Meschinelli, Fungi fossiles, p. 657. 

 1902. SphcBrites pi-oblematicits, Mesohinelli, Fiingor. foss. omnium 



Iconog., p. 24, pi. X, figs. 26, 26a. 



" Peritheoiis sparsis, punctiformibus, rotundatis vel ovalibus^ 

 rare triangulatis, O'5-l mm. diam., ostiolo centrali duobus 

 annulis prominentibus circumdato." 



Host. — Leaf of StercuUa Snoivii. 



HoKizoN. — Dakota Group, 



LocALiTT. — Kansas, U.S.A. 



While it is possible that this species may represent a true 

 pyrenomycetous fungus, there is no real evidence for the view, 

 and the markings on the leaf may be duo to galls, and not 

 fungal in their nature. 



Order DISCOMYCETES. 



Genus PHACIDITES, Meschinelli. 



[In Saccardo, Sylloge Fungorum, x, p. 776.] 



Presumably with the characters of the living genus PJiaci- 

 dium, but incompletely known. 



