Lembosia species

Firmino, André L., Vélez-Zambrano, Sergio M., Barreto, Robert W. & Dianese, José C., 2019, Fungi from the “ Lost World ”: Novel Asterinaceae from the Ricardo Franco Hills (Brazil), with a worldwide key to Lembosia species on Melastomataceae, Phytotaxa 409 (3), pp. 129-145 : 142-143

Key to Lembosia species on Melastomataceae

1a. Appressoria present............................................................................................................................................................................2

1b. Appressoria absent............................................................................................................................................................ L. memecyli

2a (1a). Internal mycelium absent...........................................................................................................................................................3

2b (1a). Internal mycelium present.................................................................................................................................... L. miconiicola

3a (2a). Equatorial light bands absent on the ascospores........................................................................................................................4

3b (2a). Equatorial light bands present on the ascospores................................................................................................... L. sclerolobii

4a (3a). Pseudoparaphyses present..........................................................................................................................................................5

4b (3a). Pseudoparaphyses absent.........................................................................................................................................................13

5a (4a). Ascospores with septal constriction in the upper third..............................................................................................................6

5b (4a). Ascospores constricted at the middle.........................................................................................................................................7

6a (5a). Appressoria pulvinate to subcylindrical................................................................................................................... L. miconiae

6b (5a). Appressoria hemispherical ........................................................................................................................................ L. rolliniae 7a (5b). Appressoria mostly lobate..........................................................................................................................................................8

7b (5b). Appressoria not lobate.............................................................................................................................................................10

8a (7a). Ascospores oblong to cylindrical...............................................................................................................................................9

8b (7a). Ascospores ellipsoid...................................................................................................................................... L. matogrossensis

9a (8a). Colonies hypophyllous............................................................................................................................................. L. abaxialis

9b (8a). Colonies epiphyllous....................................................................................................................................... L. melastomatum

10a (7b). Colonies epiphyllous................................................................................................................................................................11

10b (7b). Colonies hypophyllous ..................................................................................................................................... L. memecylicola

11a (10a). Appressoria alternate..............................................................................................................................................................12

11b (10a). Appressoria irregularly distributed........................................................................................................................ L. catervaria

12a (11a). Appressoria cylindrical..................................................................................................................................... L. miconiphylla

12b (11a). Appressoria hemispherical ................................................................................................................................ L. domingensis

13a (4b). Ascospores constricted at the middle.......................................................................................................................................14

13b (4b). Ascospores constricted in the upper third ..................................................................................................................... L. ryanii

14a (13a). Appressoria cylindrical to hemispherical...............................................................................................................................15

14b. (13a). Appressoria clavate ................................................................................................................................................. L. gigantea

15a (14a). Asci 55−72 × 41−48 μm ......................................................................................................................... L. melastomacearum

15b (14a). Asci 69−84 × 33−43 μm ......................................................................................................................... L. miconiae-prasinae