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 Add this item to the list  192. Agaricus (Pleurotus) phosphorus n. s.
Page number:572 
Description type:Original description 
Description:192. Agaricus (Pleurotus) phosphorus, n. s.
Pileis infundibuliformibus glabris pallidis dense caespitosis; stipitibus utplurimum centralibus deorsum attenuatis subsericeis, supra e lamellis latiusculis integris descendentibus lineatis. Gunn, No. 1361.
Hab. On roots of trees. Oct., 1845, and abundant .in the succeeding January and February.
Forming dense masses, or occasionally growing singly. Pilei three to five inches across, infundibuliform pale, yellowish brown, smooth or very rarely minutely cracked or virgate; fleshy in the
centre, thin at the margin, which is slightly lobed. Stem one to two inches high, attenuated below, solid, slightly silky, lineated above; or in solitary individuals, short and obtuse. Gills rather broad above, attenuated and decurrent behind, and forming lines on the stems; interstices even. Spores broadly ovate, white, or when seen in a dense mass, tan-coloured.*
The solitary individuals present quite a distinct aspect, having a short obtuse and less silky stem, and the gills, though much attenuated at the base, ending abruptly. Occasionally a pileus of a similar form occurs in the midst of a tuft. So phosphorescent, that Mr. Gunn was able to read by its light, and it remained luminous for six days or more after being gathered. It is certainly distinct from the two phosphorescent Australian species, A. nidiformis, and A. lampas, described in my first Century.
A curious specimen, supposed to be of this species, or possibly A. salignus, was found growing on Acacia dealbata, from the cavity in which the caterpillar of a Cossus had been nursed, and entirely filling up the shell of the Pupa with its mycelium, so as at first sight to appear parasitic on the insect.
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