Thursday, November 04, 2010


Hygrophorus pacificus

Fruiting near the entrance road to UAS and Mt. Edgecumbe hish school for at least the last month is a species of Hygrophorus that seems to fit H. pacificus. The mushrooms form a rather large group (about 70 individuals at one time) on the grass under a row of Sitka spruce. The are gregarious, and often quite close together, but I didn't see any stem fusion.
Characterisitcs:

Caps to 7cm across, slightly to moderately visicid and pale orange yellow to very pale yellow orange at the margins and strong yellow brown at the center ((ISCC-NBS color names).
The caps are convex when young, then upturned and a bit wavy when mature. The cap tissue doesn't react with KOH.
When dry the entire cap turns a medium brown (58)

The gills are pale cream, waxy and widely spaced and slightly decurrent. The gill trama is divergent (managed to get a decent cross section).
The stems are not viscid, cream in color without any noticeable surface features. The longest are close to 5cm tall.

The mushroom was somewhat aromatic, not almond-like though.
It keys out fairly easily to H. pacificus in both Arora and in the Pacific Northwest Key council site and the characteristics agree with the descriptions I found in the Hesler and Smith monograph.

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