Porina leptosperma Müll. Arg.
Flora, 66: 333, 1883.
Synonyms: Phylloporina leptosperma (Müll. Arg.) Müll. Arg.
Distribution: S - Cal (Puntillo & Vezda 1994, Puntillo 1995, 1996, 2000).
Description: Thallus crustose, thinly episubstratic, smooth, grey to grey-green, continuous or forming dispersed, up to 6 mm wide patches, without a distinct prothallus. Perithecia 0.1-0.15 mm across, globose, strongly constricted at base, dark reddish brown, somehow shiny, rarely partly covered by hyphal tissue. Involucrellum 10-12 μm thick, yellowish red, K+ orange (Porina-yellow pigment), not extending down to the substrate; algal cells present in a layer between the involucrellum and the perithecial wall; exciple prosoplectenchymatous, colourless or pale yellow, more or less indistinct in upper part, 8-12 μm thick at base; paraphyses richly branched and anastomosing, c. 1 µm thick; hymenial gel I-, K/I-. Asci 8-spored, obclavate, thin-walled throughout, functionally unitunicate, dehiscent by rupture of the apex, with no extruded inner layers and an apical ring structure, I-, K/I-. Ascospores 3-septate, hyaline, subfusiform to almost bacilliform with subobtuse ends, 15-20 x 3-4 µm. Photobiont trentepohlioid. Spot tests: thallus K-, C-, KC-, P-. Chemistry: thallus without lichen substances.Note: an obligately foliicolous lichen with tropical-subtropical affinities; the Italian material is from cladodes of Ruscus near a creek in a warm-humid forest. It is included as “Critically Endangered” in the Italian red list of epiphytic lichens (Nascimbene & al. 2013c).
Growth form: Crustose
Substrata: leaves
Photobiont: Trentepohlia
Reproductive strategy: mainly sexual
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Oromediterranean belt: absent
Montane belt: absent
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: extremely rare
Humid mediterranean belt: absent
Dry mediterranean belt: absent
Predictive model
Herbarium samples
Felix Schumm - CC BY-SA 4.0
[ABL15420], Brazil, Rondônia, Sítio Ecológico Buriti on Lago Cujubim
E of Porto Velho. 8°35'17'' S, 63°40'40'' W, 100 m. On leaves in
disturbed rain forest. Leg. M. Cáceres & A. Aptroot, (no. 15420), 18
Nov. 2012, det. A. Aptroot 2012.
Felix Schumm - CC BY-SA 4.0
[ABL15420], Brazil, Rondônia, Sítio Ecológico Buriti on Lago Cujubim
E of Porto Velho. 8°35'17'' S, 63°40'40'' W, 100 m. On leaves in
disturbed rain forest. Leg. M. Cáceres & A. Aptroot, (no. 15420), 18
Nov. 2012, det. A. Aptroot 2012.
Domenico Puntillo - CC BY-SA 4.0
Italia
Growth form: Crustose
Substrata: leaves
Photobiont: Trentepohlia
Reproductive strategy: mainly sexual
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Oromediterranean belt: absent
Montane belt: absent
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: extremely rare
Humid mediterranean belt: absent
Dry mediterranean belt: absent
Predictive model
| Herbarium samples |
Index Fungorum
GBIF
Felix Schumm - CC BY-SA 4.0
[ABL15420], Brazil, Rondônia, Sítio Ecológico Buriti on Lago Cujubim E of Porto Velho. 8°35'17'' S, 63°40'40'' W, 100 m. On leaves in disturbed rain forest. Leg. M. Cáceres & A. Aptroot, (no. 15420), 18 Nov. 2012, det. A. Aptroot 2012.
Felix Schumm - CC BY-SA 4.0
[ABL15420], Brazil, Rondônia, Sítio Ecológico Buriti on Lago Cujubim E of Porto Velho. 8°35'17'' S, 63°40'40'' W, 100 m. On leaves in disturbed rain forest. Leg. M. Cáceres & A. Aptroot, (no. 15420), 18 Nov. 2012, det. A. Aptroot 2012.
