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 Add this item to the list  Ramaria flava (Schaeff.: Fr.) Quél.
   
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Page number:25 
Description type:Non-original description 
Description:Ramaria flava (Schaeff.: Fr.) Quél.
Ramaria flava (Schaeff.: Fr.) Quél. 1888. Fl. mycol., p. 466 = Clavaria flava Schaeff.: Fr. 1821. Syst. mycol. 1: 467 = Clavaria flava Schaeff. 1774. Fung. Bavar., Index 118 (pl. 175).
Fruitbodies up to 14 x 8 cm, broadly obovoid or obpyriform in outline. Stipe up to 4 x 3 cm, large to medium sized (not massive), single, smooth, without abortive branchlets, broadly conical, off-white below substrate level, not rooting, unchanging or weakly brunnescent where handled, pale clear lemon yellow (S. 229, `maize yellow') above substrate; flesh white, solid, uniform to mottled, not gelatinous. Major branches few, concolorous with stipe apex, more or less terete. Branches in 3-6 ranks, terete, when young upward gradually becoming somewhat more intensely yellow (S. 258); in age mellowing to buffy yellow (`warm buff,' `pale orange yellow'); flesh very pale yellow (`ivory yellow'), often tinged with pallid fleshy cinnamon (`light pinkish cinnamon'); internodes diminishing gradually upward; axils rounded to narrowly rounded. Apices short when young, at maturity dentate to minutely pronged, rounded, clear yellow (`buff yellow') to clear ochre-yellow (S. 258, ,mustard yellow'), at maturity somewhat elongated, dichotomous to trichotomous, concolorous with mature branches (S. 229). Odor mild, of rubber; taste faintly fabaceous or of cauliflower.
Macrochemical reactions: FSW, FSA, FCL, GUA, ANW = positive; PYR = weakly positive; ANO = negative to weakly positive; KOH, NOH = negative.
Stipe tramal hyphae 4-25 µm diam., hyaline, thin- to thick-walled (wall up to 0.5 µm thick locally), tortuous, densely interwoven, not adherent or agglutinated, occasionally clamped; ampulliform clamps rare to abundant (in various collections), up to 20 µm broad, thin-walled, with gross stalactitiform ornamentation; gloeoplerous hyphae not observed. Stipe surface hyphae 3-9 µm diam., thin-walled, more or less parallel, mostly clamped. Tramal hyphae of upper branches 3-14 µm diam., hyaline, thin- to thick-walled (wall occasionally up to 0.5 µm thick), occasionally clamped, parallel, locally adherent in some specimens; interhyphal crystalline deposits occasional, hyaline, amorphous. Hymenium thickening; basidia 65-70 x 12 µm, clavate, clamped, often sinuate to geniculate; contents granular to homogeneous when young, at maturity with scattered refringent guttules, weakly cyanophilous; steriµmata 4, straight, stout, subperipheral.
Spores (Petersen, 1974: fig. 4) (9.7-)10.7-14.8 x 4.3-5.9 µm (E = 1.94-3.00; _Em = 2.36; stn = 11.9 µm), subcylindrical to somewhat tapering distally, minutely roughened in profile; contents uni- to multiguttulate, with acyanophilous, refringent guttules; wall up to 0.3 µm thick; hilar appendix eccentric, papillate, prominent; ornamentation strongly cyanophilous, of very small, scattered warts and narrow meandering ridges with no apparent orientation.
The addition of data from specimens listed below allows broadening of spore dimension ranges as well as reducing spore Lm a full micrometer.
Two of the three Swedish specimens (TENN 35061, 35063) showed pallid salmon tints in the upper branch flesh, not noted previously for this species. While additional data on this character are needed from continental European specimens, the character must be added to the species description. In this regard, the Swedish specimens resemble R. rubricarnata Man & Stuntz (1973: 113) from western North America, especially a vernal variety (var. elongata Petersen & Scates, 1988), in which the branches are yellow and the flesh pallid salmon. That species (all varieties) is also macrochemically active, bears clamped hyphae, and shows mottled stipe flesh. If the Swedish material listed below can be considered non-conspecific with R. flava, then it is surely quite similar to R. rubricarnata. Ramaria flavigelatinosa var. carnisalmonea Man & Stuntz (1973: 83) also exhibits pink-salmon branch flesh and yellow hymenium. That taxon, however, produces gelatinous stipe flesh, lacks clamp connections, and is macrochemically relatively inert.
For more on nomenclatural synonymy and history of the species taxonomically, see Petersen (1974). Although I have not seen a more appropriate specimen of R. flava than that originally cited as representative specimen, in this case I prefer to retain it as a `representative specimen' rather than as neotype. This will allow designation of a well-documented, freshly collected specimen from topotype ground as neotype.
 
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