Botryosphaeriales » Planistromellaceae » Kellermania

Kellermania yuccigena

Kellermania yuccigena Ellis & Everh. [as 'yuccaegena'], J. Mycol. 1(12): 154 (1885).

Index Fungorum number: IF 223494; Facesoffungi number: FoF11897 , Fig. 1

Description:

Saprobic on host. Sexual morph: Unknown. Asexual morph: Conidiomata 135–155 μm diam., 105–125 μm high, immersed to semi-immersed, globose to subglobose, scattered to grouped, visible outwardly as small black dots, with a centrally located ostiole, numerous. Ostiole 15–25 μm, single, central, circular. Conidiomata wall 18–35 μm, composed of thin-walled, pale brown cells of textura angularis. Conidiophores 10–25 μm, reduced to conidiogenous cells. Conidiogenous cells 9−13.9 × 3.2−7.3 µm (x̄ = 11.5 × 4.9 µm, n = 10), holoblastic, annellidic, discrete, indeterminate, cylindrical, hyaline to sub hyaline, smooth-walled. Conidia 20−30 × 7.2−9.5 µm (x̄ = 24 × 9.1 µm, n = 10), falcate, ellipsoid or oblong, cylindrical, straight or slightly curved, truncate at the base tapered into a single, cellular unbranched appendage, base truncate with a single, lateral, cellular, unbranched appendage, uniseptate, hyaline, thin and smooth-walled, guttulate.

Material examined: The United States, Kansas, Riley, Manhattan, on Euphorbia lathyris (Euphorbiaceae), 28 July 1981 (CUP-A-033486).

Fig. 1 Kellermania yuccigena (CUP-A-033486). a–d Herbarium material. e Section through conidioma. f Conidiomatal wall. g–i Conidiogenesis. j–o Conidia. Scale bars: c = 5000 μm, d = 1000 μm, e, j = 50 μm, f = 10 μm, g, h, k–o = 20 μm, i = 30 μm

Importance and distribution

There are 36 Kellermania epithets in Index Fungorum (2022), but several species have been transferred to Alpakesa, Chaetoconis, Dilophospora, Heteropatella, Macrophoma, Obstipipilus and Scolecosporiella. Kellermania comprises 23 species known on several host plants such as Aquilegia caerulea (Ranunculaceae), Aster sp. (Asteraceae), Juncus sp. (Juncaceae), Ligusticum sp. (Apiaceae), Penstemon sp. (Plantaginaceae), Yucca aloifolia (Asparagaceae), Nolina micrantha (Agavaceae), Dasylirion leiophyllum (Asparagaceae), Salix viminalis (Salicaceae) and Eucalyptus longifolia (Myrtaceae). Kellermania is reported from Asia (India, Taiwan), Australia, Europe (France, Germany, Poland) and The United States (Arizona, California, Colorado, Florida, Mexico, Nevada, New York, Texas).