taken not to confound this with stipitate forms of the two
foregoing species.
68. POLYSACCUM, BC.
Common peridium simple, rigid, bursting irregularly ; internal
mass divided into distinct cells, filled with peridiola.
Spores mixed with threads.
1. P. olivaceum, Fr.; peridium roundish, olive, as well as
the regular minute peridiola ; stem short, abrupt, almost rootless.—
Sow. t. 425 a, b.
On the ground (not on sandhills). Extremely rare. High-
gate. I have seen no specimen, and am therefore uncertain
whether it is really distinct from P. pisocarpium.
69. CENOCOCCUM, Fr.
Peridium naked, thick, carbonaceous, indéhiscent, at length
hollow, with the walls dotted with dust-like spores.
1. C. geophüum, Fr.; black; spores of the same colour.—
Sow. t. 270.
In woods, where the soil is peaty. Common. About the
size of a vetch. The proper situation of this genus is very
doubtful.
O r d e r 10. MYXOGASTPFS.
At first pulpy, at length filled with flocci and dust-like
spores.
70. LYCOGALA, Mich.
Peridium composed of a double membrane, papyraceous.
persistent, bursting irregularly at the apex, externally warty
or furfuraceous. Flocci delicate, adnate to the peridium.
1. epidendram, Fr.; Grev. t. 38. On decayed wood.*
2. parietinum, Fr.; Schrad. Nov. Gen. t. 6./. I; {no. 381). Oudamp
paper, basket-work, etc.
71. RETICULARIA, Bull.
Peridium indeterminate, simple, thin, naked, bursting irre-
gularly, fugitive. Elocci attached to the, peridium, flat,
branched, subreticulate.
1. maxima, Fr. On felled trees.
2. atra, Fr. ; Sow. t. 257. On felled pines.
3. umbrina, Fr. (Plate 20, fig. 5.) Sow. t. 272. On old rails, etc.
* Specific characters are given of those species only which can he readily
made out with nothing more than a common lens. A mere list is appended o f
the smaller species, a full account o f which, or a reference to where such an
account exists, will be found either in the ‘ English Flora ’ or in Taylor’s
Journal, the number in that Journal being indicated where the plant is not
contained in the first-mentioned work. The place o f each number in the
Journal may be found from the following schedule
Mag. o f Zool. and Bot. vol. i. p. 42 ; no. 1 - 37.
1! „ vol. i. p. 507: no. 3 8 - 58.
Ann. o f Nat. Hist. ser. 1. vol. i. p. 198 : no, 59-107.
„ vol. i. p. 257 : no. 108-137.
„ vol. vi. p. 355 ; no. 188-207.
„ vol. vi. p. 430 ; no. 208-256.
„ vol. xiii. p. 340 : no. 257-322.
ser. 2. vol. ii. p. 259 : no. 323-379.
„ vol. V. p. 365 : no. 3 8 0-437.
„ vol. V. p. 455 : no. 438-501.
„ vol. VÜ. p . 95 : no. 502-537.
„ vol. vii. p. 176 ; no. 538-614.
„ vol. ix. p. 317 : no. 615-639.
„ vol. ix. p. 377 : no. 640-661.
„ vol. xiii. p. 396 ; no. 662-729.
„ vol. xiii. p. 458 : no. 730-784.
ser. 3. vol. iii. p. 356 : no. 785-900.
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