1.	Ascospores shorter than 11 μm …..…………………………………….…. 2
1.	Ascospore longer than 11 μm …………………………………………….... 8
2.	Ascospores 1-septate; (5.5–)6–7 × 3–3.5 μm …………………. L. vestita
2.	Ascospores 1–3-septate, longer than 7 μm ………………………...……. 3
3.	Asci (46–)50–56(–65) × 6–7 μm, ascospores (7–)7.5–9 × 3.5–4(–4.5) μm ………………..………………………………………………... L. investita
3.	Asci longer than 56 μm ………………..……………………………………. 4
4.	Ascospores usually 1–2-septate, old ascospores 3-septate …………… 5
4.	Ascospores 3-septate early in ontogeny ………………………………… 7
5.	Ascospores 1(–3)-septate, first-formed septum in the middle, 8–10 × 4.5–5 μm …………………………………………..…… L. cirrhosa
5.	Ascospores usually 1–2-septate, first-formed septum in the middle or slightly above or below the middle ………………………………………… 6
6.	Ascospores up to 9.5 μm long; aerial mycelium on MLA woolly, woolly-floccose or almost cobwebby at the margin; margin of the colony consisting of densely branched hyphae ………………………. L. conoidea
6.	Ascospores usually slightly longer, 9–10.5 μm; aerial mycelium on MLA cottony to felty having a more compact appearance; margin of the colony consisting of unbranched or sparsely branched hyphae ….. L. tenuirostris
7.	Ascospores (8–)9–10.5(–11) × 4–5 μm, asci 72–81 × 6.5–7.5 μm …………….………………………………………………………… L. unipretoriae
7.	Ascospores longer than 10.5 μm ………………………………………… 8
8.	Ascospores (12.5–)13–15 × 5.5–6.5 μm ………….…………… L. magna
8.	Ascospores shorter than 13 μm …………………………………………… 9
9.	Preferring coniferous wood; ascomata up to 600 μm diam with a neck up to 170 μm wide; ascospores (10–)10.5–13 × 4–5.5 μm, asci (66–)70–88(–90) × (7.5–)8–9.5(–10) μm …………..……………... L. crinigera
9.	Species without substrate preferences, ascomata and necks smaller …………………………………………………………………………………….. 10
10.	Asci up to 8 μm wide, ascospores up to 5 μm wide; asci (70–)72–80(–82) × 7.5–8(–8.5) μm, ascospores (10–)11–12 × 4–5(–5.5) μm ……………………………….………………………………… L. obscura
10.	Asci wider than 8 μm, ascospores wider than 5 μm …….……………… 11
11.	Asci length/width ratio 9.4, ascospores (10.5–)11–12(–13) μm long ………………………………………………………..……………... L. sulcata
11.	Asci length/width ratio 8.6, ascospores 11.5–13(–14) μm long ……………………………………………………………………... L. striatella