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Description type:Original description 
Description:Ramaria claviramulata sp. nov. (P1. III Fig. 14, P1. XVII Fig. 74)
Holotypus M-392 ad viam secus fontem calidum Goldmeyerae prope North Bend, in in comitato King pagi washingtoniaci 10/4/66 lectus, in herbario SUCO conservatus.
Basidiocarp: Habitat: terrestrial, growing under Western Hemlocks. Color-stipe of the fresh fruiting body brownish white, sometimes with subareolate regions of superficial hyphae of darker brown, branches "grayish orange" (5B4-5), apices mostly concolorous, context brownish white. Dried fruiting'bodies generally "brownish orange" (5C5), sometimes with darker areas on the base or apices, context brownish white. Taste: bitter. Odor: musty. Form: basidiocarps of small dimensions, 5-9 x 3.5-4.5 cm. Stipe single or occasionally 2-3 stipes in a fascicle, tapering, slender, 1.4 x 0.5-2 cm; branching dichotomous, axils acute and branches moderately divergent, internodes distinct but not greatly elongated, 3 cm about max length, branches generally not diminishing greatly in diam upwards, some terminal branches distinctively enlarged,,up to 1.5 cm broad, resembling some of the irregular clubs of Clavariadelphus, bifid to antlered near apices; apices rounded or blunt. Consistency: fleshy-fibrous when fresh, drying hard.
Macrochemical Reactions: Context of the stipe non-amyloid; reaction with 10% Fe 2(S04)3 immediate, and both fresh and dried specimens reactive with 20% KOH, dried specimens turning "oxide red" (8E8); no significant color changes within 30 min of application to branch sections noted for pyrogallol, a-napthol, guaiac, guaiacol, phenol and aniline.
Microscopic structures: Spores: average 9.3 x 4.7 µm, range 9-10.5 x 4-5 µm, elongate-ellipsoidal, apiculus prominent up to 3 x 2 µm, ornamented with fine, lobed, cyanophilous warts, some spores nearly smooth. Hymenium: basidia clavate, 65-75 x 8-8.5 µm, without basal clamps, 2-4-sterigmate; sterigmata 5-8 µm long, straight, not divergent; spores embedded in a thickened hymenium and subhymenium, which combined are 135-211 µm thick. Subhymenial hyphae: interwoven 3-6 µm diam, thin-walled, without clamps. Contextual hyphae: subparallel to definitely interwoven in the stipe, parallel in the branches, mostly non-inflated in the stipe, 5-9 µm diam, some cells of the branches highly inflated, 5-22 µm diam, walls smooth or fluted, moderately cyanophilous, hyphae of the stipe very thick-walled, 1-4 µm, thick-walled in the branches, 0.25-2.5 µm, ampulliform inflations near septa rare, 13-20 µm diam, walls of swellings distinctly ornamented in the stipe, less so in the branches; clamps absent; gleoplerous hyphae not observed.
Discussion: Ramaria claviramulata is a unique Ramaria of western Washington with respect to form. Its chubby terminal branches are strikingly similar to the apices of the fruiting bodies of Clavariadelphus species. Besides the chubby terminal branches, R. claviramulata is set apart by the following characteristics: (1) a context reacting immediately with 10% Fe 2(SO4)3, (2) hymenium turning "oxide red" upon application of 20% KOH, (3) beige-colored basidiocarps, (4) thick-walled hyphae, (5) spores with an apiculus of very large size, and (6) a thickening hymenium. Furthermore, the numerous fertile basidia appear completely normal, and all those observed are 4-sterigmate. Fruiting body color and spore morphology slightly resemble those of R. acrisiccescens, but characteristics (1), (3), and (5) are very different. The fast reaction with 10% Fe 2(S04)3 is also a feature of R. celerivirescens, but in other ways these species seem very different from each other.
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