Tripterosporella pakistani Malloch & Cain, Can. J. Bot.
Creators: name: Melo, Roger Fagner Ribeiro
name: Maia, Leonor Costa
name: Miller, Andrew Nicholas
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Fungi
Ascomycota
Sordariomycetes
Sordariales
Lasiosphaeriaceae
Tripterosporella
Tripterosporella pakistani

description: 11. Tripterosporella pakistani (J.H. Mirza) Malloch & Cain, Can. J. Bot. 50(1): 67 (1972)   
(Plate 1, Figs. 27–29)  
 Ascomata non-ostiolate, scattered, semi immersed to superficial, globose, dark gray to black in stereomicroscopy, light brown to dark brown in mounting, 350–400 μm diam., hairy. Hairs sparse, hyphoid, simple or branched, thick-walled, septate, smooth, light brown to golden, becoming less pigmented towards the tip, with a bulbous base and rounded to tapered tip, 2.5–3 μm diam. at the broadest part, narrowing towards the apex, very scarce in some ascomata. Peridium pseudoparenchymatous, membranaceous, opaque, composed of angular to slightly subglobose (textura angularis), thin-walled, light brown cells, 5–10 μm diam. at the inner layers, becoming more thick-walled and less angular at the outermost layer. Asci 8-spored, cylindrical-clavate, with a long stipe and a tapered apex, 215–255 × 20–25 μm, persistent, with subapical globule smooth to finely verrucose, globose to subglobose, 3–5 μm diam. (5.5–6 × 3–5 μm when subglobose), irregularly biseriate or triseriate. Ascospores 1-celled, cylindrical to sigmoid and hyaline when young, with rows of oil droplets, usually geniculate at the base, smooth, 55–60 × 5–7.5 μm, becoming swollen at the apical part to finally two-celled with the formation of a transverse septum. Head cell ellipsoid, apex umbonate, base strongly tapered, smooth, brown, 19.5–22.5 × 10 – 12.5 μm, with a subapical germ pore, guttulate. Pedicel cylindrical, hyaline, occasionally geniculate near the base, occasionally collapsing, 35–39 × 5–7.5 μm. Apical caudae lashlike, hyaline, 10–20(–25) × 1–2.5 μm, usually collapsing in mounting. Basal caudae similar to the apical caudae in morphology, usually collapsing in mounting.   
 Material examined: — BRAZIL. Pernambuco, Universidade Federal Rural de Pernambuco (UFRPE), Recife, on cattle dung, 25 Apr 2012, R. F. R. Melo (URM 86756a!, 86756b!).   
 Habitat: —Herbivore dung.   
 Distribution: —Asia (Pakistan) and Europe (Italy). This is the first record from Brazil.   
 Notes:—Representatives of this genus have sparsely pilose cleistothecia, formed superficially on dung, differing from most genera with similar habit by the presence of cylindrical-clavate, unitunicate asci with a distinct apical ring. Tripterosporella pakistani was named after the place where it was first described by Mirza, from horse dung in Pakistan in 1968, from material under the name Cleistobombardia pakistani J.H. Mirza. along with T. coprophila Subramanian & Lodha (1968: 246), type species of the genus, which was described by Subramanian & Lodha (1968). Both circumscriptions were recombined by Malloch & Cain (1971), under the name Tripterosporella pakistani (J.H. Mirza) Malloch & Cain. It differs from T. coprophila by the smaller ascospore head cells (19.5–22.5 × 10–12.5 μm) and shorter apical and basal gelatinous caudae.
description: Published as part of Melo, Roger Fagner Ribeiro, Maia, Leonor Costa & Miller, Andrew Nicholas, 2017, Coprophilous ascomycetes with passive ascospore liberation from Brazil, pp. 159-172 in Phytotaxa 295 (2) on pages 167-168, DOI: 10.11646/phytotaxa.295.2.4, http://zenodo.org/record/13688452