Botryosphaeriales » Planistromellaceae

Kellermania

Kellermania Ellis & Everh., J. Mycol. 1(12): 153 (1885)

Facesoffungi number: FoF 06690

Dothideomycetes, order incertae sedis, Botryosphaeriales, Planistromellaceae

 

Saprobic on plants in terrestrial habitats, such as Asparagaceae, subfamilies Agavoideae and Nolinoideae (Nag Raj 1993, Minnis et al. 2012, Crous et al. 2014a). Sexual morph: see Monkai et al. (2013). Asexual morph: Conidiomata dark brown, pycnidial, solitary to aggregated, immersed, globose in section view, unilocular or multilocular, glabrous, ostiolate. Ostiole single, circular or oval, non-papillate, centrally located. Conidiomatal wall composed of thick-walled, dark brown to brown cells of textura prismatica in the exterior, gradually merging with thin-walled, hyaline cells of textura angularis in the conidial hymenium, becoming thicker, pale brown to hyaline cells towards conidial hymenium, with columnar, thin-walled, hyaline cells surrounding the ostiole. Conidiophores reduced to conidiogenous cells, invested in mucus. Conidiogenous cells hyaline, holoblastic, discrete, determinate, often of two kinds, those producing macroconidia, arising from the basal and lateral wall, cylindrical to subcylindrical, smooth-walled; those producing microconidia restricted in the inner wall around the ostiolar region, ampulliform to broadly ampulliform, smooth-walled. Macroconidia hyaline, cylindrical to narrowly clavate, truncate at the base, unicellular or euseptate, bearing single, multiple, stout and unbranched, attenuated, flexuous apical appendages or lacking appendages. Microconidia hyaline, cylindrical to ellipsoidal or irregular, rounded and blunt at the apex, truncate at the base, unicellular, smooth-walled.

 

Type species: Kellermania yuccigena Ellis & Everh., J. Mycol. 1(12): 154 (1885)

 

Notes: Kellermania was revised by Sutton (1968, 1980), Morgan-Jones et al. (1972a) and Nag Raj (1993). Minnis et al. (2012) included molecular data and placed Kellermania in Planistromellaceae (Botryosphaeriales). They stated that conidial appendages as single characters have insufficient value to separate genera in coelomycetes, and then reduced Alpakesa Subram. & K. Ramakr. and Piptarthron Mont. ex Höhn. to synonymy with Kellermania. Crous et al. (2014a) designated an epitype on leaves of Yucca rostrata (Asparagaceae) from USA and confirmed the placement of Kellermania as in Minnis et al. (2012). Wijayawardene et al. (2017b) estimated there to be 20 species in Kellermania. The sexual morph of Kellermania has been assigned to Planistroma A.W. Ramaley and Planistromella A.W. Ramaley (Ramaley 1991, 1992, 1993, 1995, 1998), but they both were reduced to synonymy with Kellermania (Minnis et al. 2012). Monkai et al. (2013) considered Planistroma as a separated genus based on LSU and ITS sequence data.

 

Distribution:  Algeria, France, Mexico, USA (Nag Raj 1993, Minnis et al. 2012, Monkai et al. 2013, Crous et al. 2013, 2014a).

 

References:

 

Li WJ, McKenZie EHC, Liu JK, Bhat DJ, Dai DQ, Caporesi E, Tian Q, Maharachcikumbura SSN, Luo ZL, Shang QJ, Zhang JF, Tangthirasunun N, Karunarathna SC, Xu JC, Hyde KD (2020) Taxonomy and phylogeny of hyaline-spored coelomycetes. Fungal Diversity 100: pages279–801.

 

 

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