Stevenson (1964) recombined Lentinus hyracinus Kalchbrenner as Lentinellus hyracinus (Kalchbr.) G.Stev., based on a collection she made in New Zealand (Herb G.Stev. 1053, K). There is no evidence that she examined the type material from Australia (Richmond River, NSW, F. von Mueller, Herb. K), or that she knew that Bresadola (1929) and Pilat (1941) considered it to be a synonym of L. ursinus. Miller & Stewart (1971) also considered this collection to be synonymous with L. ursinus and my examination also confirmed the small spores and thick-walled, amyloid hyphae which are characteristic of L. ursinus. Miller & Stewart (1971) apparently did not examine the Stevenson collection which has larger spores and no amyloid tissues and is obviously not L. ursinus. In all characters L. hyracinus sensu Stev. resembles Lentinellus pulvinulus (Berk.) Pegler. The Stevenson material is described in full under L. pulvinulus. Description of L. hyracinus sensu Stevenson
Stevenson (1964) described her collection as "Pileus 2 - 3.5 cm diam., ochraceous-salmon, orbicular, sessile, mostly laterally attached but sometimes dorsally, with an inrolled margin, imbricating, tough gelatinous texture, matt drying finely fibrillose; flesh firm, fawn. Gills decurrent, moderately crowded, rather thick, margins coarsely and irregularly serrate".
My observations indicate that the dried basidiomata are a pale yellowish brown to ochraceous (5CS--5D7, K&W), lamellae drying ochraceous (5B6-5C6), broad, not very crowded especially in larger basidiomata, edge dentate to finely lacerate; surface of pileus finely fibrillose, tomentose towards the base in some (? older) basidiomata, the pileipellis there bearing a tangled mass of fine hairs. Spores 5.0-6.0 x 3.5-4.0 (5.5 x 4) µm, Q = 1.3. Basidia 25 x 6 µm, four-spored. Pseudocystidia on the lamellae narrow and filiform or larger (up to 15 µm diam.), basically clavate, sometimes with a digitate apex; leptocystidia subulate, hyaline, thin-walled, fusiform. Subhymenium narrow, of rather thick-walled hyphae. Trama of parallel hyphae with broad, oleiferous hyphae next to the subhymenium. Context of thick- and thinwalled, interwoven hyphae, 5-6 µm diam., a few thick-walled hyphae in the upper context becoming faintly amyloid in Melzer's reagent. Pileipellis of 3-4 layers, hyphae 3 µm diam. with yellowish brown walls. Some slightly thickened, oleiferous hyphae concentrated in the upper context, the emergent ends transformed to simple or vermiform, thick-walled pseudocystidia (40-80 x 8-15 µm) on the pileal surface. Hairs arising from the pileipellis towards the attachment region narrow (4-5 µm diam.) with slightly thickened walls and one or two clamped septa.

Pileus 2-3.5 cm diam., ochraceous salmon, orbicular, sessile, imbricating, tough gelatinous texture, matt drying finely fibrillose; flesh firm, fawn. Gills decurrent, moderately crowded, rather thick, margins coarsely and irregularly serrate. Spores 4.5-5.5 x 4-4.5µm, strongly amyloid, subglobose, ornamented with spines and fine ridges (Fig. 40). Hymenophoral trama loosely woven of irregular hyphae c. 5 µm diam., some with very thick walls. Cuticle of loosely woven hyphae, many 10 µm diam., with occasional cystidia 40-60 x 10-20 µm.

On fallen rotting wood in coastal forest, Palmer's Bush, Nelson, 14.4.1956, Stevenson.