Due to delays in data processing at GenBank, some accession numbers may lead to unreleased (pending) pages.
These pages will eventually be made live, so try again later.
Olive text indicates a specimen that has not been
thoroughly examined; for example, for microscopic details or other place in the text
where data is missing; for example, a place name or a measurement.
The following is based upon original research by R. E. Tulloss.
50 mm wide, white, becoming slightly gray in aging or when handled, convex, then planar with slight umbo, smooth, dry; context white, unchanging when cut or bruised, 1 - 1.5 mm thick; margin striate, nonappendiculate; universal veil absent; pileipellis peeling easily.
free, with some decurrent lines on stipe apex, close, white to faintly pinkish in mass, drying tan (near 10YR 7/6), 5 mm broad; lamellulae ??.
up to 64 × 6.5 mm, white, becoming slightly grayish as in pileus, narrowing upward slightly, slightly fibrillose; context solid; exannulate; universal veil as saccate volva, flaring, white, 1.3 [c?]m deep, completely buried in substrate.
Odor absent. Taste not recorded.
[20/1/1] (10.1-) 10.6 - 13.2 (-14.3) × (7.2-) 7.7 - 9.9 (-10.0) µm, (L = 11.7 µm; W = 8.6 µm; Q = (1.11-) 1.20 - 1.55 (-1.83); Q = 1.37), hyaline, colorless, smooth, thin-walled, inamyloid, broadly ellipsoid to ellipsoid, infrequently subglobose or elongate, adaxially flattened, sometimes expanded at one end; apiculus sublateral, cylindric to narrowly truncate-conic; contents ??; white in deposit.
Subgregarious. Under Pinus cf. ponderosa in clayey soil.
Each spore data set is intended to comprise a set of measurements from a single specimen made by a single observer;
and explanations prepared for this site talk about specimen-observer pairs associated with each data set.
Combining more data into a single data set is non-optimal because it obscures observer differences
(which may be valuable for instructional purposes, for example) and may obscure instances in which
a single collection inadvertently contains a mixture of taxa.