Search on : Taxa descriptions


Page number:139 
Remarks (internal):Within subg. Ramaria there is a complex of taxa exhibiting similar basidiomata; all with buffy violaceous or avellaneous branch apices, and all with massive stipes. The European material is R. strasseri, which shares branch apex color (Bresadola: "ramis avellaneo cinnamomeo-umbrinis; ...ramulis ... concoloribus..."), general spore ornamentation and measurements (two Bresadola specimens, see below,; 13.3-17.4 x 5.0-6.6. µm; E=2.22-3.00; Em=2.63), but according to Bresadola's plate (1932, pl. MLXXXIX) differs substantially in branch shape and elongation (branches depicted being as long as the stipe is high). Amyloidity of stipe flesh, of course, was not noted and is now unreliable in authentic specimens.
Clavaria strasseri Bresadola was described in Strasser's Pilzflora Sonntagsberg (1900: vol. 2, p. 3) based on a specimen contributed by Strasser. Bresadola's herbarium is housed chiefly at Stockholm (S), and a specimen there labelled as "C. strasseri Bres. n. sp." was divided and a portion sent to W.C. Coker at University of North Carolina. Coker accepted the specimen (annotation in NCU) portion as the type of the species.
The designation was not published, however. Consequently, the Stockholm (S) specimen ["Sonntagsberg. (Austria) Sep. 1899" herb. Bresadola] is here designated as lectotype of Clavaria strasseri [isolectotype, NCU].
It woutd appear that Ramaria subviolacea is the same as at least some of the specimens cited by Man ands Stuntz (1973: 46-47) under R. strasseri. Man (pers. comm.) knew that the name was doubtful, but knew no other appropriate epithet. The photo by Man and Stuntz (1973; fig. 65) of Marr 444 shows a very different basidiome with smaller stipe beset with numerous primordial branchlets, but a photo (and specimen) of Man 534 shows a large, virtually naked, obconical, pale stipe and bushy branches and apices. The description furnished (presumably including both basidiome structures) mentions amyloid stipe flesh and my measurements of the basidiospores of Mar- 534 (12.2-15.5 x 5.0-6.1 µm; E=2.27-2.8; Em=2.57; Lm=13.98 µm) compares favorably with those of R. subviolacea.
Description type:Original description 
Description:Ramaria subviolacea R.H. Petersen & C. Scates, sp. nova - Figs. 1-3
Basidiomata broadly clavate to broadly spheropedunculate in profile. Stipe 60-100 x 50-80 µm, single, often accounting for more than half of basidiome height, off-white, usually faintly lined, naked or with few shallowly pyramidal scale-like primordial branchlets; flesh solid, white, fleshy-fibrous, often with insect channels, quickly and distinctly amyloid. Branches numerous, 8-16 mm long, sudivaricate, muscled to shallowly channeled, off-white to yellowish gray; axils rounded to lunate. Apices pluridentate to dentate, knobby to obtusely rounded at maturity, when young 7C3-8B2 ("vinaceous drab" to "ecru drab"; 6YR 6.6/2.0), mellowing (through spore accumulation?) to yellowish gray. Taste mild; odor faintly musty. Cut stipe fIesh quickly amyloid in IKI, branch sections without significant change in pyrogallol, a-napthol, guaiac, guaiacol, phenol, and aniline oil.
Stipe trama monomitic; generative hyphae 4.5-10(-20) µm diam, tightly interwoven, occasionally inflated, rarely thin- to thick-walled (wall up to 1.2 µm thick), hyaline singly, somewhat refringent under phase contrast optics, clamped; clamp connections variable in shape, including alliiform, up to 15 µm thick), sparsely ornamented. Hyphae of upper branch flesh 2.5-7.5 µm diam, hyaline, thin-walled, strictly parallel, not adherent, clamped; clamp connections occasionally alliiform and then thick-walled (wall up to 0.8 µm thick), unornamented. Subhymenium rudimentary, up to 30 µm thick; hyphae 2.5-4.0 µm diam, hyaline, tightly interwoven, frequently clamped, not adherent. Hymenium thickening to at least 100 µm; basidia 55-64 x 8.5-10 µm, clavate, hyaline, clamped; contents apparently homogeneous; sterigmata four, curved, up to 6.5 µm long. Basidiospores (Fig. 3; n=84/4) 12.0-18.0 (-19.2) x 5.0-7.0(-7.6) µm (E=1.71-2.87; Em=2.39; Lm=14.13 µm), ellipsoid, roughened in outline, longitudinally to obliquely striate (in aniline blue), thick-walled (wall up to 0.4 µm thick); contents obscurely 2-multiguttulate: hilar appendix blunt, not prominent.
Habitat: deeply buried in needle debris and humus under Abies grandis and Pseudotsuga menziesii; northern Idaho and western Washington.
Additional specimens examined: R. strasseri: Austria. Lower Austria, Sonntagberg, IX.1899, herb. Bresadola
Taxon name: