Dendrosporomyces prolifer Nawawi, J. Webster & R.A. Davey, Trans. Br.

Fiuza, Patrícia O., Cantillo-Pérez, Taimy, Gulis, Vladislav & Gusmão, Luís F. P., 2017, Ingoldian fungi of Brazil: some new records and a review including a checklist and a key, Phytotaxa 306 (3), pp. 171-200 : 181-185

Dendrosporomyces prolifer Nawawi, J. Webster & R.A. Davey, Trans. Br. mycol. Soc. 68: 59, 1977.

( Fig. 4A )

Material examined: — BRAZIL. Bahia: Piatã, Chapada Diamantina, on submerged leaves of Calophyllum brasiliense ( Calophyllaceae ), 10 November 2013, P. O. Fiuza s.n ( HUEFS 215692); BRAZIL. Bahia: Piatã, Chapada Diamantina, on submerged leaves of Calophyllum brasiliense ( Calophyllaceae ), 07 September 2014, P. O. Fiuza s.n ( HUEFS 215706).

Conidiophores not observed. Conidia hyaline, consisting of cylindrical, curved main axis with 7–10 primary branches. Main axis not constricted at septa, 14–20 septate, 150–440 × 7–10 μm; primary branches cylindrical, 4–17 septate, 198–335 × 8–10 μm, constricted at base, rounded at the apex; secondary branches cylindrical, 3–13 septate, 62–323 × 8–10 μm; branches constricted at base, rounded at the apex.

Geographical distribution: — India (Sridhar et al. 1992); Malaysia ( Nawawi et al. 1977); USA ( V. Gulis, unpublished).

Notes: — Dendrosporomyces is composed by two species: D. prolifer (type species) and D. splendens (Nawawi) Nawawi & J. Webster ( Nawawi & Webster 1982) . The genus is characterized by holoblastic, branched, hyaline conidia, consisting of a main axis bearing primary and secondary branches ( Nawawi et al. 1977) and dolipore septa ( Nawawi 1985a). Dendrosporomyces prolifer differs from D. splendens by having somewhat smaller, profusely branched conidia ( Marvanová 1997). Dendrosporomyces splendens has been previously reported from Brazil on submerged leaves of Euterpe edulis Mart. (1824: 33) and Alchornea triplinervia (Spreng.) Mull. Arg. in Candolle (1866: 909) from the Atlantic Forest, the state of São Paulo ( Grandi 1998, 1999). It is the first record of D. prolifer from Brazil.

Figures

FIGURE 4. A. Dendrosporomyces prolifer: conidium; B. Dendrosporomyces splendens: conidium; C. Filosporella versimorpha: conidiophore and conidia; D. Flabellocladia tetracladia: conidium; E. Flabellospora crassa: conidium; F. Flabellospora multiradiata: conidium; G. Flabellospora verticillata: conidium; H. Flagellospora curvula: conidia, conidiophore and conidiogenous cells; I. Flagellospora stricta: conidia, conidiophore and conidiogenous cells; J–K. Geniculospora inflata: conidia. (Scale bar: A–B= 80 μm; C, E, G–H= 25 μm; D, J–K= 30 μm; F= 50 μm; I=10 μm)