CRYPTOGAMIA. FUNGI. Uredo 
371 
(Golden Mould. M. ch?'ysosper?nus. Bull. Relh. Sowerby. Purt. Reti- 
cularia chrysosperma. Bull. Uredo mycophila. Pers. E.) I have re¬ 
peatedly found it, but always upon Boleti growing in shady places; 
generally on Boletus pellucidus. Aug.—Sept. 
M. lignif'ragus. Growing in spots: white or green: stems very 
slender, branched, interwoven: seeds very minute, roundish, 
scattered. 
Bull. 504. 6. 
At first white, then deep green, often but few together. Figure of the spots 
uncertain. 
(Stick Mould. M. lignifragus. Sowerby. Bull. Purt. E.) White wood 
near Gamlingay. Relhan. On decayed wood in winter, common. 
M. argen'teus. Spreading, white, consisting of extremely fine woolly 
filaments supporting seeds. 
This appears upon some of the smaller stipitated Boleti, covering the whole 
of the pileus and upper part of the stem. It is more durable than 
M. chrysospermus. (Mr. Purton suggests that it may possibly prove to 
be that fungus in an early state, before the fruit is perfected. E.) 
(Silvery Mould. E.) Under the large clump of beeches, Edgbaston park. 
Aug.—Sept. 
The Boleti on which either this or M chrysospermus are found, are always 
in a very tender half decayed state. 
M. lepro'sus. Bristle-shaped: seeds at the root. 
Mich. 91. 5. Aspergillus 
(Leprous Mould. E.) Caverns and arched cellars. Sept.—April. 
M. erys'iphe. White : heads brown, sessile. 
(White Sessile Mould. E.) On decaying leaves. Aug.—Sept. 
(M. granulo'sus. Crustaceous, black: capsules sessile. 
(Grey. Scot. Crypt. 118. 1. E.)— Bull. 504.13. 
Surface somewhat rugose, and impressed with flexuose lines. The perithecia 
are whitish within, and, in favourable circumstances, open freely and dis¬ 
charge their contents. Sporuliferous tubes filiform. Grev. Spherules 
pouring out a thick glutinous matter. Purt. E.) 
(Granulous Mould. Xyloma acerinum. Pers. Grev. E.) Grows in cir¬ 
cular spots of half an inch diameter, on the leaves of sycamore, occupying 
both surfaces of the leaf. 
(URE'DO. # Fungus parasitic, undermining the epidermis of the 
leaves and stalks of plants, bursting forth in 
longitudinal or oval patches. Capsules clavated, 
emitting numerous seeds without fibres inter¬ 
mixed. E.) 
(tJ. frumen'ti. Appearing in black striae upon the leaves and stalks of 
wheat: capsules nearly the length of the stems. 
Annals of Botany, vol. ii. pi. 3 and 4 — Sowerby 140. 
* (From uro, to burn : as appearing to blast or scorch vegetables affected by it. E.) 
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