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 Add this item to the list  Ramaria marrii Scates, sp. nov.
Description type:Original description 
Description:Ramaria marrii Scates, sp. nov.
Fruitbodies (Fig. 7) up to 15 x 9 cm, ellipsoid to broadly ovate in outline. Stipe up to 6 x 4 cm, single, broadly rounded below, without abortive branchlets, smooth to minutely tomentose, often with 1-several slender, ropy, white rhizomorphs, white to off-white, chocolate brown where pressed by substrate objects, bruising brown to watery brown ("sayal brown," "Mikado brown," "ochraceous tawny," "buffy brown") where bruised, but hardly when cut; flesh solid, soft-spongy in large stipes, off-white ("pale pinkish buff"), often minutely marbled ("pale olive buff"), drying firm-friable to hard. Major branches 2-4, ascending, hardly terete, pallid tan below, upward concolorous with branches. Branches in 3-5 ranks, terete, light brown or flesh tan, often with avellaneous tints ("pinkish buff," "cinnamon buff," "chamois," "tilluel buff," "pale ochraceous buff," "vinaceous buff," 5A2-6B4), remaining so throughout development; internodes long below, diminishing abruptly at maturity; axils rounded to narrowly rounded. Apices somewhat terraced when young, crowded, minutely digitate, deep fleshy tan when young ("army brown," "wood brown," "fawn color," 8D4-5), fading somewhat by maturity. Odor negligible to slightly agaricoid; taste mildly bitter to weakly astringent.
On soil and duff in mixed coniferous forests, including Pinus monticola and Abies grandis.
Macrochemical reactions: FSW, FCL = strongly positive; PYR, ANO, ANW, GUA, PHN, IKI = negative.
Stipe tramal hyphae 6-14 µm diam, hyaline, clampless, thick-walled (wall up to 1.2 µm thick), tortuous, gnarled, tightly interwoven; ampulliform inflations up to 16 µm broad, aliiform, thick-walled (wall up to 1.2 µm thick), hardly ornamented; gloeoplerous hyphae not observed. Tramal hyphae of upper branches 4-12 µm diam, hyaline, clampless, thin-walled, parallel to subparallel, tightly packed, free to locally adherent. Subhymenium rudimentary. Hymenium thickening; basidia 45-60 x 8-10 µm, clavate, clampless; contents multiguttulate when mature, the guttule yellowish, refringent; sterigmata 4, spindly, lyriform.
Spores (Fig. 8) 8.6-11.6 x 4.3-5.4 µm (E = 1.67-2.23; Em = 2.08; Lm = 9.85 µm), ellipsoid to narrowly ovate, flattened adaxially, obscurely roughened in profile; contents uniguttulate, the guttule refringent, yellowish; wall up to 0.3 µm thick; hilar appendix papillate; ornamentation variable, from almost absent to narrow meandering ridges, to large discrete, low warts.
Commentary: Of the few taxa in the subgenus with tan or brown fruitbodies, most exhibit clamp connections. Ramaria spinulosa (Pers.: Fr.) Quel. (and its variety diminutiva Pet.) is clampless and the specimens cited below match R. spinulosa in the following ways: 1) fruitbody color; 2) lack of clamp connections; 3) macrochemical nonreactivity; 4) brunnescent bruising reaction; and 5) spores of similar dimensions.
Conversely, fruitbodies of R. marrii are bulkier, with generally heavy stipe, while those of R. spinulosa are slenderer, with modest, clean stipe. Stipe flesh in R. marrii is off-white (although brunnescent), while stipe flesh in R. spinulosa is consistently tan to tan-brown. When properly dried, flesh of specimens of R. marrii is easily pierced with a needle, but is not chalky-friable as in R. spinulosa. The spores of R. spinulosa are 1-severalguttulate, with the guttules dark and non-refringent, while R. marrii has uniguttulate spores, with the guttule strongly refringent and yellowish. Finally, R. marrii fruits vernally, so far in a restricted, inland area, while R. spinulosa fruits autumnally, and perhaps is restricted (in western North America) to coastal regions from California through Washington.
Our examination of the type specimens of R. fumosiavellanea Marr and Stuntz (SUCO: Marr no. 730) shows it to be conspecific with R. spinulosa.
The species epithet honors Dr. Currie D. Marr, student of Ramaria, author of the definitive publication on the genus in the northwest, and friend of both authors.
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