Data from CBS Aphyllophorales database

POLYPORUS ROSULARIS sp. nov.

Hymenophorium annum, rosulatum, pileorum 5-15 compositum e basi commune emergentium. Pilei digitati, spatulati vel urceolati, ad 3 cm. x 3 cm. x 1-5 mm.; superficies cremea, demum pallide ochrea, subtiliter tomentosa, radiatim sulcata; cuticula 100 µm crassa, ex hyphis pallum densum formantibus compositis, textu gelatinoso cinctis; superficies hymenialis decurrens, cremea vel pallide ochrea. Contextus stramineus, hypharum systema monomitica; hyphae genitales longae, sparse brachiatae, libere septatae, hyphis fibulatis; ducti lacticiferi absentes. Pori irregulares, 150-200 µm diam., vel 4-5 per mm.; dissepimenta 50-200 µm. Typus basidialis clavatus. Sporae late obovatae, 4-5 x 3.5-4 µm, leves, hyalinae.

POLYPORUS ROSULARIS n. sp. Plate I, Fig 2.

Hymenophore annual, hard and horny though brittle, compound, rosulate, of numerous (5-15) pilei united by a broad stem-like base to a common stroma. Pilei simple or branched, digitate, spathulate, or urceolate, to 3 cm. x 3 cm. x 15 mm., attached by a broad base about 0.3-0.5 the width of the pileus; surface cream, becoming pallid ochre, irregular, radiately sulcate, finely tomentose, cuticle to 100 µm thick, composed of densely woven hyphae arranged in a palisade embedded in mucilage; margin reddish-brown, or concolorous, thin and horny, translucent, much lobed or crenate acute or bluntly rounded; hymenial surface decurrent, cream or pallid ochre, darker peripherally, with or without a narrow sterile margin, dissepiments not toothed. Context straw colour, 1-2 mm. thick, of radiately arranged hyphae, firm but brittle; generative hyphae 6-8 µm thick, wall 1.0µm, ribbon-like, lumen staining, sparsely branched, septate, with large clamp connections. Pores straw colour in section, 1-1. 5 mm. deep, 150-200 µm diameter, or 4-5 per mm.; dissepiments 50-200 µm thick, equal, of woven mainly parallel hyphae, apex equal, finely velutinate. Basidial type clavate, basidia clavate, 14-16 x 5-7 µm, persistent. Spores broadly obovate, 4-5 x 3.5-4 µm, smooth, hyaline.

DISTRIBUTION: New Zealand.

HABITAT: Growing upon rotting logs or stumps.

Nothofagus sp.

Nelson. Mt. Arthur Tableland, 3, 500 feet, Feb., 1928, G. H. C.Hawkes Bay. Waikare-iti Track, Lake Waikaraemoana, Jan., 1933, J. G. Gibbs, type collection.