Anteaglonium brasiliense D.A.C. Almeida, Gusmão & A.N. Mill., 2014

Almeida, Davi Augusto Carneiro De, Gusmão, Luís Fernando Pascholati & Miller, Andrew Nicholas, 2014, A new genus and three new species of hysteriaceous ascomycetes from the semiarid region of Brazil, Phytotaxa 176 (1), pp. 298-308 : 300-301

Anteaglonium brasiliense D.A.C. Almeida, Gusmão & A.N. Mill. , sp. nov. MycoBank MB 807154 ( Fig. 1 )

Anteaglonium brasiliense is similar to A. latirostrum Mugambi & Huhndorf (2009: 462) , but differs in having smaller ascospores with fewer septa.

Type:— BRAZIL. Bahia: Santa Terezinha, Serra da Jibóia (12º50’57”S, 39º28’31”W), on twig of unidentified plant, 10 May 2013, D.A.C. Almeida s.n (holotype HUEFS 192250 ; isotype ILLS 71161 ).

Etymology:— Referring to the country ( Brazil) in which it was collected.

Hysterothecia erumpent to superficial with base immersed, black, carbonaceous, subglobose to ellipsoid, straight or flexuous, with a longitudinal slit, sulcus deep, smooth or slightly striated laterally, gregarious, lying at irregular angles, 170–820 µm long × 110–160 µm high × 110–220 µm wide. Pseudoparaphyses hyaline, septate, apically branched, 1–1.5 µm wide. Asci bitunicate, clavate, 8-spored, irregularly biseriate, short-stalked, 34.5–47 × 4–5.5 µm. Ascospores hyaline, fusiform, smooth, straight to slightly flexuous, 1-septate, constricted at the septa, guttulate, 9–13(–15) × 2–4 µm. Anamorph unknown.

Notes:— Previously, only four species were accepted in Anteaglonium . Anteaglonium abbreviatum ( Schweinitz 1832: 245) Mugambi & Huhndorf (2009: 460) , A. globosum Mugambi & Huhndorf (2009: 460) and A. parvulum ( Gerard 1874: 40) Mugambi & Huhndorf (2009: 462) can be easily differentiated from A. brasiliense by their obovoid ascospores. The fourth species, A. latirostrum , has ascospores with a similar shape to those in A. brasiliense but differs in having larger ascospores (22–28 × 4–6 µm) with more septa (1–4).

Figures

FIGURE 1. Anteaglonium brasiliense. A–B. Ascomata. C–D. Asci with ascospores and pseudoparaphyses. E. Ascus with ascospores. F–H. Ascospores. Scale bars: A–B = 0.5 mm, C–E = 10 µm, F–H = 5 µm.