68 ON SPHERELLA AND ITS ALLIES. 
eryptogamia, that the natural tendency of the vegetable cell is that 
of undergoing septation. The spore is a vegetable cell, inheriting 
ural tendency ion r 
Of the 337 species in the ‘ Sylloge,’ about 100 are unknown to us ; 
of these, 50 at least belong to very recent Ttalian rpeniee of which 
not is known in other parts of Europe, except the names and 
descriptions, specimens never having been published or distributed. 
Some of the remaining 50 are species long ago described, perhaps 
imperfectly, but which cannot be regarded as other than do ubtful. 
Our remarks on the species are made in the order in which they 
are Agrees in the ‘ Sylloge,’ with the oe teiealated species denoted 
by an risk. We do not pretend to have examined other genera, 
except penn where we have cae a sci in our opinion 
isplac ence we hazard no on g the species 
included under them, or whether ee alta iicoioly to Spherella. 
1*SpH#rewxa (Lestadia) stiematopes B. & C. -— Hypophylla. 
Peritheciis sparsis, eae Sph. punctiforme simulantibus. 
Ascis clavato-cylindricis. Sporidiis arcte ellipticis, obtusis, con- 
tinuis, hyalinis (0 08-01 x 002-0025 m m.) 
m leaves. Maine, U.S 
_SeBmanizaa (Lastadia) aupocrustata Schwz., No. 1791. — 
# pulveracee albe cinerascenta inde terminatim vage effuse 
aatenk erithecia sparsa nigra, passim inter se in crusta quasi 
effiguratim sarcolit: nec tamen connexa, intus evacuata, primum 
convexa subrugosa, demum collapsa. Ascis clavatis, numerosis 
(016 mm. long). Sporidiis tinearibas obtusis (004 x ‘0015 mm.) 
s. 
ee Ae 
The use of reagents failed to detect any septum, but the sporidia 
were evidently immature and refused to leave the asci. 
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minutis, 8 erumpentibus. 
Ascis clavatis. Sporidiis biseriatis arcte ellipticis, utrinque obtusis, 
continuis, hyalinis i 01- ae oy mm.) 
On beech leaves. King’ 
16*SpH@RELLA (Lawtaia) ae x Fell Symb. Myce. 100; Spheria 
Buxi, Desm. Ann. Sci. Nat., xix —Hypophylla. Peritheciis 
dense sparsis, minutis eicichoie ae. sian. pallidis in par- 
enchymate ve nidulantibus, epidermide nigrifacta tectis, poro 
pertusis. Ascis clavatis, medio subinflatis; npr oblongis, 
obtusis, 1-2 nities, subhyalinis ( 01-011 x 0035 m 
On dead leaves of Buaus 
Evidently Saccardo regards this as Microthyriwm microscopicum 
(see Michelia, vol. 1., p. 608), but there is an undoubted Spheria on 
the specimens publis hed by Desmazieres, and we have collected 
and examined the same in the fresh state. No one who has done 
sO aia possibly satound the two. The Spherelia has pale innate 
