Licea capacia Oltra & G. Moreno, 2014

Basanta, Diana Wrigley De, Mier, Carlos De & Lado, Carlos, 2023, A taxonomic revision of the species of Licea subg. Licea (Myxomycetes), Phytotaxa 629 (2), pp. 95-128 : 102-103

5. Licea capacia Oltra & G. Moreno , in Moreno & Oltra, Bol. Soc. Micol. Madrid 38: 56 (2014) Figs. 5A–I

Sporophores sporocarpic, dispersed or grouped, sessile. Sporocarps elongated, 0.05–0.15 mm length, 0.05 mm wide, 0.05 mm high, reddish brown to yellow brown. Peridium double, smooth, membranous, marked with dehiscence lines to make 4 platelets, two short and two long ( Figs. 5 C – D ); peridial platelets pale reddish brown by TL, with smooth lighter margins; dehiscence along the upper longitudinal line. Spores pale reddish brown in mass, very pale yellow brown by transmitted light, subglobose to angular 10–11 μm diam., minutely verrucose. By SEM the inner peridium is granular with tiny sparsely distributed warts and the surface is uniform right to the margins of the platelets with no larger ornamentation; the epispore is densely verrucate with different sized warts and the spores appear to be polygonal.

Material examined: Holotypus. SPAIN. Valencia, Onteniente, Pontó de Marín, 30SYH0299, 456 m, on leaves of Agave americana , 22-I-2010, leg. M. Oltra, 12486.Oltra ( AH 42711)! .

Habitat: on leaves of succulent plants ( Agave americana ) and leaves of scrubs (Pistacea lentiscus).

Distribution: Known only from Spain.

Icon.: Moreno & Oltra (2014: 57, Figs. 1–14 ).

Notes. The curious almost cuboid sporocarps, are easy to recognize; and give the appearance of an historical doctors medical bag. The species was described as having a single peridium, but as can be seen in the SEM micrograph ( Fig. 5 G , arrow) the peridium is double. The occurrence on succulent plants and longitudinal dehiscence bring the species close to L. succulenticola Mosquera, Lado, Estrada & Beltrán-Tej. , but it is quite different, since the spores are smaller and subglobose in that species, not angular to polygonal, and dehiscence is into two flat halves by a split, not four platelets.

Figures

FIGURE 1. Licea alpina. A–F (AH 28531, Holotype).A. Herbarium boxes and slides. B–D. Stalked and subsessile sporocarps. E. Spores and peridial platelets by TL. F. Spores by TL. Scale bars: B–D = 0.1 mm, E–F = 10 µm.

FIGURE 2. Licea ampulliformis. A–H, K–M (dwb 1988, MA-Fungi 98835, Holotype), I–J (dwb 2535).A. Herbarium box. B–D. Sessile sporocarps. E. Spores and peridial platelets by TL showing clear margins to the platelets (arrows). F–H. Spores by TL. I. detail of platelet margin showing clear area by SEM (arrow). J. Inner surface of a platelet showing warted surface. K–L Detail of open sporocarp showing platelets and spore by SEM. M. Spores by SEM. Scale bars: B–D = 0.1 mm, E = 20 µm, F–H, L = 10 µm, I–J, M = 5 µm, K = 50 µm.

FIGURE 3. Licea aurea. A–G. (dwb 3815, MA-Fungi 91750, Holotype), H–J. (dwb 3533). A. Herbarium box. B–D. Sporocarps. E. Whole sporocarp and spores by TL. F. Fragment of the inner surface of the peridium and spores. G. Spores by TL with thick walls and thinner germination area. H. Whole open sporocarp showing spores by SEM. I. Group of spores by SEM. J. Spore by SEM. Scale bars: B–D = 0.1 mm, E–G, I = 10 µm, H = 50 µm, J = 5 µm.

FIGURE 4. Licea belmontiana. A–J (NENB-5879, BR-MYC 5020057898868, Holotype). A. Herbarium box. B–C. Sessile sporocarps. D. Peridial platelets by TL. E. Spores by TL. F. Dehisced sporocarp by SEM. G–H. Peridial platelets by SEM showing margins without outgrowths (arrows). I–J. Warted spores by SEM. Scale bars: B–C = 0.1 mm, D–G = 10 µm, H–J = 5 µm.

FIGURE 5. Licea capacia. A–I (12486.Oltra, AH 42711, Holotype).A. Herbarium box. B–D. Sessile sporocarps. E. Peridial platelets by TL. F. Angular spores by TL. G. Peridial platelet margins by SEM showing double peridium (arrow) and no outgrowths. H–I. Spores by SEM. Scale bars: B–D = 0.1 mm, E–F = 10 µm, G–I = 5 µm.

FIGURE 6. Licea castanea. A (BM 3025, BM001089212, Lectotype); B–G (MA-Fungi 16013); H, J (MA-Fungi 29564); I (MA-Fungi 15932); K–S (Holotype of L. bryocorticola, HK 201113-07a, M-0313079). A. Herbarium box. B–D. Sessile sporocarps. E. Spores and peridial platelets by TL showing outgrowths on the edges. F–G. Spores by TL. H. Spore by SEM. I. Peridial platelets by SEM, showing outgrowths along the margins. J. Spore by SEM. K. Herbarium specimen. L–N sessile sporocarps. O–Q. Peridial platelets by TL showing outgrowths on the edges. R–S. Spores by TL. Scale bars: B–D, L–N = 0.1 mm, E–G, P–S = 10 µm, H–J = 5 µm, O = 20 µm.

FIGURE 7. Licea castaneoides. A–I (NENB 16135, ex Y.Y. 6407, BR5020070191601, Holotype). A. Herbarium box. B–C. Sessile sporocarps. D. Peridial platelet and spores by TL. E. Spores by TL. F. Dehisced sporocarp by SEM. G. Platelet by SEM showing double peridium with no outgrowths on the edge. H–I. Spores by SEM. Scale bars: B–C = 0.1 mm, D–F = 10 µm, G–I = 5 µm.

FIGURE 8. Licea chelonoides. A–J (NENB 5620, BR5020057361348, Isotype). A–B. Herbarium box. C–D. Sessile sporocarps. E. Peridial platelet and spores by TL. F. Spores by TL. G. Dehisced sporocarp base by SEM. H. Platelet outer surface by SEM. Whole platelet showing well-defined edges. I. Edge of a platelet by SEM showing double peridium and no outgrowths on the edge. J. Spore by SEM. Scale bars: C–D = 0.1 mm, E–F, H = 10 µm, G = 50 µm, I–J = 5 µm.

FIGURE 9. Licea eremophila. A–C, F–J, L (dwb 2826, MA-Fungi 79158, Holotype); D–E, K (dwb 3002). A. Herbarium box. B–C. Stipitate sporocarps. D. Sporocarps. F. Whole sporocarp and spores by TL. G. Platelets by TL with lighter edges (arrow). H–I. Polygonal spores by TL. J. Platelets by SEM showing well-defined margins. K. Spore by SEM. L. Spore by SEM. Scale bars: B–E = 0.1 mm, F = 20 µm, G–J = 10 µm, K–L = 5 µm.

FIGURE 10. Licea lignicola. A–I (HK 200820-27a, M-0313080, Holotype). A. Herbarium specimen. B–C. Open sessile sporocarps. D. Peridial platelet by TL. E. Spores by TL. F. Dehisced sporocarp by SEM. G. Platelet margin by SEM showing lines of concentrated warts. H. Group of spores by SEM. I. Spore by SEM. Scale bars: B–C = 0.1 mm, D–E = 10 µm, F = 50 µm, G–H = 10 µm, I = 5 µm.

FIGURE 11. Licea mariae. A–H (MYX 11149, Holotype).A. Herbarium fragment. B–C. Sessile sporocarps. D. Peridial platelets by TL. E–F. Peridial platelets with row of conical outgrowths (arrows). G–H. Spores by TL. Scale bars: B–C = 0.1 mm, D–H = 10 µm.

FIGURE 12. Licea mínima.A–B, E. G, I–K (MA-Fungi 23775, Neotype); C–D, F, H (MA-Fungi 17214).A. Herbarium box. B–D. Sessile sporocarps. E–F. Peridial platelets by TL. G–H. Spores by TL. I–J. Detail of inner peridium surface and platelet edges by SEM. K. Spore by SEM. Scale bars: B–D = 0.1 mm, E, I = 20 µm, F–H, J = 10 µm, K = 5 µm.

FIGURE 13. Licea morchelloides. A–D (NENB 13887, BR5020071552630, Isotype). A. Slide. B–D. platelets and spores by TL. Scale bars: B–D = 10 µm.

FIGURE 14. Licea nannengae. A–I (246 Pando, MA-Fungi 16056, Holotype). A. Herbarium box with holotype indicated with arrow. B–C. Sessile sporocarps. D–E. Peridial platelets by TL. F. spore by TL. G. Dehisced sporocarp by SEM. H. Detail of inner peridium surface at platelet edges by SEM. I. Spore by SEM. Scale bars: B–C = 0.1 mm, D–F, H = 10 µm, G = 50 µm, I = 5 µm.