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Description type:Original description 
Description:Ramaria rubribrunnescens sp. nov. (Pl. VII Fig. 39)
Holotypus M-844 ad rivum Ipsut prope viam in territorio conservato montis Rainier in comitato Pierce pagi washingtoniaci 11/1/67 lectus, in herbario SUCO conservatus.
Basidiocarp: Habitat: terrestrial, growing under Western Hemlock. Color-base of the fresh fruiting body white to "orange white" (5A2), branches of immature basidiocarps "pastel red" (7A4) with "light yellow" (4A4) apices, in age the general coloration a shade browner than "light orange" (5A4), the base and lower branches staining "oxblood red" (9-10E8), in age the staining extensive in the lower parts, context concolorous with the surface. Dried basidiocarps generally grayish "pale yellow" (4A2-3), in places "apricot yellow" (5B6), stained regions retaining some of the reddish brown color, context "pale yellow" (4A3). Taste-not distinctive. Odor-sweet in age, resembling anise. Form: basidiocarps mostly of medium size, 7-16 x 5.5-11 cm. Stipe single, frequently slender and tapering, e.g. 1 x 0.7 cm, basal abortive or primordial branches common in young specimens, in older specimens the stipe a subfascicle of several to numerous slender primary branches; branching up to 9 times from the- stipe, mostly dichotomous at least in the upper nodes, axils subacute or narrowly u-sKaped, branches slightly divergent, internodes elongated at maturity, branches generally, slender, mostly 1-5 mm diam, bifid to finely divided near apices; apices acute to rounded. Consistency: fleshy-fibrous when fresh, drying brittle and chalky-friable.
Macrochemical Reactions: Context of stipe non-amyloid; weak color reactions sometimes developing within 30 min of application to branch sections of a-napthol, guaiac, and guaiacol; no significant reaction occurring with pyrogallol, phenol and aniline.
Microscopic structures: Spores: average 12.3 x 4.4 µm, range 10-14 x 3.5-5 µm, subcylindrical with a slight suprahilar depression and dorsal convexity, entire spore wall cyanophilous, ornamentations very fine, some spores smooth or nearly so, in deposit "grayish yellow" (4A3). Hymenium: basidia clavate, 41-67 x 8-11 µm, without basal clamps, content of the hymenial cells strongly cyanophilous, 2-4-sterigmate; sterigmata 5-7 µm long, slightly incurved and divergent; hymenium and subhymenium combined 80-90 µm thick. Subhymenial hyphae: interwoven, 2.5-4 µm diam, thin-walled, without clamps. Contextual hyphae: interwoven in the stipe, parallel in the branches, cells mostly not inflated, 2-6 µm diam in the stipe, 4-13 µm diam in the branches, conspicuous cyanophilous globules present in the hyphae of the branches, hyphal walls smooth or fluted, moderately cyanophilous, thin to slightly thick-walled, 0.25-1.5(-2) µm, ampulliform inflations near septa infrequent, 9-12 µm, walls of the swellings moderately ornamented in the stipe, nearly smooth in the branches; clamps absent; gleoplerous hyphae present but not abundant, mostly 2-4.5 µm diam.
Discussion: Ramaria rubribrunnescens is one of several species in western Washington which characteristically develop reddish brown stains. Other species which have this feature to a marked extent are R. cystidiophora var. maculans, R. maculatipes, R. vinosimaculans, and R. rubiginosa. Ramaria rubribrunnescens is distinguished from these species by its possession of non-clamped hyphae and long spores, 12.3m average length. It may intergrade into R. longispora both in spore size and in stafning, but this possibility needs clarification by additional observations.
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