Five species of Sarcinella from North America, with notes on Questieriella n. gen., Mitteriella, Endophragmiopsis, Schiffnerula, and Clypeolella
Generic descriptions and illustrated accounts of type species are provided for four hyphomycetous genera with hyphopodiate hyphae: Sarcinella, Questieriella (n. gen.), Mitteriella, and Endophragmiopsis. Questieriella spp. produce curved to sigmoid 3-septate conidia, and are synanamorphs of Sarcinella and Mitteriella. Five North American species of Sarcinella and their Questieriella synanamorphs are illustrated and described: S. heterospora (teleomorph Schiffnerula pulchra; synanamorph Q. pulchra n. sp.) on Fraxinus; Sarcinella quadrata (syn. Epochnium quadratum) on Fraxinus; S. questieri on Cornus; S. copallina (syn. Stemphylium copallinum) on Rhus, and Sarcinella vernoniae (syn. Stigmella vernoniae) on Vernonia. Helminthosporium prestoniae and Mitteriella craterispermi are illustrated, described, and transferred to Questieriella. The type species of Schiffnerula, S. mirabilis, and of Clypeolella, C. inversa, and briefly described and ascoma initials and Questieriella anamorphs illustrated. Developmental similarities and differences between the teleomorphs of these two genera are considered analogous to those between the meliolaceous Asteridiella and Amazonia. A tabulation is presented of synanamorphs and teleomorphs of Sarcinella, Questieriella, and Mitteriella. Some correlations are suggested. Nearly all Sarcinella species have a Questieriella synanamorph, and the teleomorphs of species with this combination are in Schiffnerula. Other species of Schiffnerula produce Questieriella alone, or no anamorph. Most species of Clypeolella produce only a Questieriella anamorph, some produce none, and one species has a Mitteriella + Questieriella synanamorph combination. Three species described in Clypeolella are transferred into Schiffnerula, C. ricini Rac. (= S. ricini Hansf.), C. gymnosporiae, and C. salaciae. Available evidence suggests that Schiffnerula and Clypeolella are more closely related than is implied by their separation into two families.