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CLAVARIA|byssacea":
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PETERSEN R.H. (1971): A new genus segregated from Kavinia Pilát. Česká Mykologie 25(3): 129-134 (published: 9th July, 1971)
abstract
When Pilát (1938) described Kavinia, the genus was typified by its only species, K. sajanensis Pil. Later, Pilát (see Christiansen, 1953), and Eriksson (1954) agreed that K. sajanensis was identical to Clavaria bourdotii Bresadola (1908), which had been misinterpreted as clavarioid instead of hydnoid. Donk (1956) reported that C. bourdotii was a synonym of Hydnum alboviride Morgan (1887). Gilbertson (1970) finally proposed the combination Kavinia alboviridis (Morgan) Gilbertson, which is assumed to be correct. A second species of resupinate hydnoid fungi was transferred into Kavinia by Eriksson (1958) as K. himantia, based on Hydnum himantia Schweinitz, and variously placed in several resupinate-hydnoid genera. The two species are not congeneric, as suggested by Corner (1970). No long and involved species descriptions are needed, for these have been supplied by the literature. Certain discordant structures might well be pointed out, however, to supply evidence for the separation of the taxa. First, the spores of K. alboviridis are roughened, thick-walled, ovoid to ellipsoid, and with the ornamentation of cyanophilous low warts or crests. The spores of K. himantia are smooth, thin-walled, cylindrical and without cyanophilous reaction to speak of (although the wall itself is weakly so). In short, the spores of K. alboviridis differ from those of K. himantia precisely as the spores of most species of Ramaria differ from those of Lentaria. Second, the hyphae of K. himantia (especially the hyphae of the basal tomentum) bear ampulliform or onion-shaped swellings, especially at the clamped septa. The hyphae of K. alboviridis are without such swellings. Third, the hyphae of K. himantia often are covered with small, cyanophilous, densely distributed spines, while the hyphae of K. alboviridis are smooth.
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