1 907. P e risp o iium v u lg a re . Corda. “ Common Perisporium.”
Gregarious, globose, black, erumpent or superficial; asci_ clavate
; sporidia ovate, brown, concatenate in fours.—Corda. ii./.
97. B. 4-Br. Ann. N.H. no. 1103. Payenf. 442-249.
On old rope. Nov. Batheaston. {Fig. 310.)
Sporidia in ch ain s of four [ (-00025 in.) ‘006 m.m. long when separated;
asci with a delicate stem.
1 9 0 8 . P e risp o rium a ru n d in is. Besm. “ Heed Perisporium.”
Scattered, flattened, nearly black, minute ; sporidia ovate, or
oblong, pale brown.—Desm. exs. no. 329. Berh Ann. N.H. no.
220. Fchl.exs.no. 644.
On leaves of reeds and their sheaths. Spring.
‘ ‘ A very douhtful production.”~ iir. J. Ji. Often barren.
LA S IO BO TRV S , Kunze.
Kg. 311.
Erumpent; central peri-
dmm between fleshy and
horny, proliferous, collapsing
above, attached to radiating
fibres; secondary
peridia ascigerous ; asci cylindrical.—
Berh Outl.p. 404.
This genus differs from its
allies in its subcuticular growth.
{Fig. 311).
1 9 0 9 . la s io b o t ry s lonicerse.
Lasiobotiys.”
Kze. “ Honey-suokle
Perithecia crowded in little orbicular tufts,_ even depressed
above • radiating filament simple ; asci cylindrical, short, thick;
sporidia 88. Grev. t. 191 Mmg. exs. no
860. Fr .S.M.üi .p .233. Fr. O h s .i.t.4 ,f.l. Eng F I .y .p .325.
B .& B r . Ann. N H .n o .6 6 1 , t. x ii./. 44. Gard. Oliron. Dec 6,
1851. Desm.exs.no. 957. Corda. Anl. t.F . f . 53, 4-1. Bisch.f.
3701. F ch l.e x s.n o .il 49. Berh. exs. no. 48.
On living leaves of Lonicera.
Epiphyllous, or cauline, with or without a yellow spot, at first covered by
the epidermis, when mature very black, and regular, circular, from one to
two lines in breadth, slightly convex, bursting at first in the centre, and exposing
the perithecia.
(Kg, 311—a, nat. size ; 5, portion of tuft enlarged; c, perithecia magnified.)
L a s io b o t r y s LiNNEiE, Berh, is Venturia Dichimi.
Gen. 2 7 7 . SPH JERO TH ECA , Lev.
Mycelium arachnoid; perithecia
globose, containing a single
globose sporangium ; appendages
numerous, floccose.—Berh.
Outl.p. 404. {Fig. 312.)
1910. Sphaerotheca. p anno sa.
Lev. “ Eose Blight.”
Mycelium thickened, woolly,
Eig. 312. felted, persistent ; conceptacles
minute, globose, scattered; appendages floccose, white; sporan
gium many-spored.—Lev. Ann. Sc. Nat. 1851, xv. p. 138, t. 6 , f
8. Coohe Micr. F .t .x i .f . 211,218. Coohe exs. no. 90. Eng. F l
v .p . 325. Fchl. exs.no.125. Frysiphe pannosa. Tul. Carp.i.p
208, i. 3. Berh. exs.no.96. Furotium rosarum. Grev.t.164, f .2
Baxt. exs. no. 92. Fr. S.M. iii.p. 232.
On the branches, calyces, petioles^ and leaves of roses. Common.
The conidiophorous condition is Oidium Imcooonium.—Desmz.
1911. Sphaerotheca C a stagn e !. Lev. “ Hop Blight.”
On both surfaces ; mycelium effuse, web-like, commonly evanescent
; conceptacles minute, scattered, globose ; appendages
numerous, short, flexuose above ; sporangium many-spored.—
Lev. Ann.Sc. Nat. 1851, xv.p. 139, t. 6,f. 9,10. Coohe M.F. t. xi.
/. 216. Coohe exs. no. 91. Fchl. exs. no.111-120. F. Dipsacearum,
Tul. Carp. i.p. 210, t. 4 ,f. 4-9. F. macularis, Fng. Fl. v.p. 325.
Ayres, exs. no. 22.
On leaves of hop, meadowsweet, and other plants.
{Fig. 312, conceptacU magnified.)