Notes:
Growing among moss on a ridge top under Quercus alba near Carya spp., Quercus spp. and Acer sp. All structures inamyloid. Excipulum composed of irregulary shaped cells. Asci unitunicate, 8-spored (uniseriate), pleurorhynchous and operculate. Spores smooth and containing 2 oil droplets. Spore measurements from Piximetre: (11.6) 11.9 – 13.7 (14.2) × (5.7) 5.8 – 7 (7.2) µm, Q = (1.6) 1.9 – 2.1 (2.3); N = 10, Me = 12.7 × 6.4 µm; Qe = 2
Individual spores: 12.21 × 5.81 µm, 11.91 × 5.71 µm, 12.46 × 6.18 µm, 12.30 × 6.31 µm, 12.24 × 6.33 µm, 12.75 × 6.77 µm, 13.66 × 6.67 µm, 11.60 × 7.16 µm, 13.75 × 6.99 µm, 14.16 × 6.28 µm

Species Lists

Images

WP_20160724_15_59_04_Pro__highres.jpg
DSC_6565 100x in Melzers.JPG
DSC_6566 Excipulum at 400x in Melzers.JPG
DSC_6577 400x in Melzers.JPG
DSC_6586 1000x in Melzers.JPG

Proposed Names

57% (1)
Recognized by sight: There are at least 4 species within Otidea alutacea sensu lato, with 2 known from western North America. There were no specimens from eastern North America examined in Olariaga et al.
Used references: Dennis, R. W. G. (1978). British Ascomycetes. J. Cramer..
Seaver, F. J. (1928). The North American cup-fungi (operculates) (No. QK623. D6 S4).
Beug, M., Bessette, A. E., & Bessette, A. R. (2014). Ascomycete Fungi of North America: a mushroom reference guide (Vol. 69). University of Texas Press.
Kanouse, B. B. (1949). Studies in the genus Otidea. Mycologia, 41(6), 660-677.
Olariaga, I., Van Vooren, N., Carbone, M., & Hansen, K. (2015). A monograph of Otidea (Pyronemataceae, Pezizomycetes). Persoonia: Molecular Phylogeny and Evolution of Fungi, 35, 166.
Based on microscopic features

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