Leptosillia

Senanayake, Indunil C., Jeewon, Rajesh, Hyde, Kevin D., Bhat, Jayarama D. & Cheewangkoon, Ratchadawan, 2020, Taxonomy and phylogeny of Leptosillia cordylinea sp. nov. from China, Phytotaxa 435 (3), pp. 213-226 : 219

Key to the accepted species in Leptosillia (sexual morph)

1. Ascospores aseptate, occasionally 1-septate ......................................................................................................................................2

1. Ascospores always 1–3 or 5–11-septate.............................................................................................................................................5

2. Reported only from bark of Acer sp. ; ascospores always aseptate.....................................................................................................3

2. Reported from bark of other hosts; ascospores occasionally 1-septate ..............................................................................................4

3. Ascomata aggregated, pseudostroma present, on mature trunks of Acer pseudoplatanus ................................................ L. muelleri

3. Ascomata solitary, pseudostroma absent, on mature trunks of Acer campestre .................................................................. L. acerina

4. Ascospores falcate to lunate with broadly rounded ends; asci strongly sinuous; on mostly Salix and Ulmus sp. in Europe .............. ...................................................................................................................................................................................... L. wienkampii

4. Ascospores straight to slightly curved with narrowly rounded ends; asci straight to curved; on Populus deltoides and Celtis occidentalis in North America.................................................................................................................................... L. fusariospora

5. Ascospores ≥3-septate; on bark of Pinus sp. , Prunus sp. , Berberis sp. , Ascomata superficial ......................................... L. pinicola

5. Ascospores ≤3-septate; on bark of living trunks of Quercus sp. , Ulmus sp. , Ascomata superficial to semi-immersed ....................8

6. Asci higher than 100 μm; Ascospores sinuous, sigmoid, semicircular to hook-shaped............................................... L. macrospora

6. Asci lower than 100 μm; Ascospores falcate............................................................................................................... L. slaptonensis