Porogramme (Pat.)

Melo, Ireneia, Salcedo, Isabel, Garcia, Cesar A. & Olariaga, Ibai, 2023, Two new species of resupinate poroid fungi (Basidiomycota, Polyporaceae) from São Tomé and Príncipe Archipelago, Phytotaxa 607 (1), pp. 41-56 : 53-54

KEY 2. World provisional key of Porogramme

[not including P. carneopallens Pat. ]

1. Substrate stained red by the basidiomes.............................................................................................................................................2

- Substrate colour unchanged by the basidiomes................................................................................................................................12

2. Pore surface dark bluish to bluish grey ..............................................................................................................................................3

- Pore surface white, beige, cinnamon, pale violet or greyish with reddish tints .................................................................................4

3. Pores 8–10 per mm, hyphal system monomitic.................................................................................................................................... ...................... Porogramme albocincta (Cooke & Massee) Gibertoni , Journal of the Torrey Botanical Society 142 (4): 333 (2015)

- Pores 7–9 per mm, hyphal system dimitic............................................................................................................................................ ......................... Porogramme epimiltina (Berk. & Broome) Y.C. Dai, W.L. Mao & Yuan Yuan, IMA Fungus 14 (no. 5): 10 (2023)

4. Pores ≤ 6 per mm................................................................................................................................................................................5

- Pores> 6 per mm................................................................................................................................................................................7

5. Pore surface white to honey, pores 4–6 per mm, hyphal system monomitic ....................................................................................... ...................................................... Porogramme yunnanensis Y.C. Dai, W.L. Mao & Yuan Yuan, IMA Fungus 14 (no. 5): 8 (2023)

- Hyphal system dimitic ………………………………………………………………………………….………….. 6

6. Pore surface white to cream, pores 3–5 per mm, slightly thick-walled dendrohyphidia, fusoid cystidioles present........................... ...................................... Porogramme bubalina (H.S. Yuan) Y.C. Dai, W.L. Mao & Yuan Yuan, IMA Fungus 14 (no. 5): 10 (2023)

- Pore surface brownish orange to pale reddish brown, pores 4–6 per mm, thin-walled dendrohyphidia, cystidioles absent ............... ...................................... Porogramme hinnulea (H.S. Yuan) Y.C. Dai, W.L. Mao & Yuan Yuan, IMA Fungus 14 (no. 5): 10 (2023)

7. Hyphal system monomitic..................................................................................................................................................................8

- Hyphal system dimitic........................................................................................................................................................................9

8. Pore surface beige to very pale brown, pores 8–12 per mm ................................................................................................................ .................... Porogramme graphica (Bres.) Pat., Essai taxonomique sur les familles et les genres des Hyménomycètes: 64 (1900)

- Pore Surface greyish with a reddish tint, pores 12–15 per mm............................................................................................................ ........................ Porogramme lateritia (Pat.) Pat., Essai taxonomique sur les familles et les genres des Hyménomycètes: 64 (1900)

9. Pore surface salmon to orange, pores 6–8 per mm, generative hyphae with simple septa, dendrohyphidia absent ............................ ........................... Porogramme aurantiaca (A.M.S. Soares) Y.C. Dai, W.L. Mao & Yuan Yuan, IMA Fungus 14 (no. 5): 10 (2023)

- Dendrohyphidia present....................................................................................................................................................................10

10. Pore surface cream to pale buff, pores 2–5 per mm, generative hyphae with both clamp connections and simple septa ................... ...................................................... Porogramme austroasiana Y.C. Dai, W.L. Mao & Yuan Yuan, IMA Fungus 14 (no. 5): 6 (2023

- Generative hyphae with clamp connections only.............................................................................................................................11

11. Pore surface very pale violet to pale buff, pores 8–10 per mm, skeletal hyphae dextrinoid................................................................ ........................................ Porogramme subargentea (Speg.) Y.C. Dai, W.L. Mao & Yuan Yuan, IMA Fungus 14 (no. 5): 10 (2023)

- Pore surface grey to deep isabelline, pores 8–10 per mm, skeletal hyphae no dextrinoid................................................................... .................................. Porogramme venezuelica (Ryvarden) Y.C. Dai, W.L. Mao & Yuan Yuan, IMA Fungus 14 (no. 5): 10 (2023)

12. Pore surface pure white, pores 10–15 per mm, hyphal system monomitic.......................................................................................... ...................... Porogramme richeriae (Pat.) Pat., Essai taxonomique sur les familles et les genres des Hyménomycètes: 64 (1900)

- Hyphal system dimitic......................................................................................................................................................................13

13. Bundles of skeletal hyphae strongly encrusted simulating large metuloid cystidia present ............................................................14

- Bundles of skeletal hyphae absent....................................................................................................................................................15

14. Pore surface dark grey with white margin, pores 5–6 per mm, basidiospores 5–6 x 2.5 µm............................................................... .................................. Porogramme brasiliensis (Ryvarden) Y.C. Dai, W.L. Mao & Yuan Yuan, IMA Fungus 14 (no. 5): 10 (2023)

- Pore surface cream to buff, pores 3–5 per mm, basidiospores 7.9–10.5 x 3.3–4.4 µm........................................................................ ................................................................................ Porogramme taiwanensis (C.C. Chen) Melo, Salcedo, C.A. Garcia & Olariaga

15. Pores ≤ 6 per mm..............................................................................................................................................................................16

- Pores> 6 per mm..............................................................................................................................................................................17

16. Pore surface whitish to light cream, pores 3–4 per mm, skeletal hyphae weakly dextrinoid, basidiospores 4.5–6 x 3–3.2 µm ......... ........................................................................................................ Porogramme principes Melo, Salcedo, C.A. Garcia & Olariaga.

- Pore surface white in fresh, straw coloured in drying, pores 2–4 per mm, skeletal hyphae no dextrinoid, basidiospores 8–10 x 3.1–3.8 µm........................................ Porogramme cylindrica Y.C. Dai, W.L. Mao & Yuan Yuan, IMA Fungus 14 (no. 5): 8 (2023)

17. Pore surface brilliant light blue, pores 7–10 per mm, skeletal hyphae dextrinoid, dendrohyphidia presente, basidiospores 5–6 x 2.5–2.8 µm, thin-walled ........................................................... Porogramme azurica Ryvarden , Synopsis Fungorum 38: 23 (2018)

- Pore surface black in fresh, dark bluish when dry, pores 25–30 per mm, dendrohyphidia absent, skeletal hyphae weakly dextrinoid, basidiospores 3–4 x 3–3.5 µm, thick-walled........................................................................................................................................ Porogramme micropora (A.M.S. Soares & W.K.S. Xavier) Y.C. Dai, W.L. Mao & Yuan Yuan, IMA Fungus 14 (no. 5): 10 (2023)