Baculifera
| Baculifera | |
|---|---|
| Scientific classification Edit this classification | |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Caliciales |
| Family: | Caliciaceae |
| Genus: | Baculifera Marbach & Kalb (2000) |
| Type species | |
| Baculifera orosa Marbach (2000)
| |
Baculifera is a genus of lichens in the family Caliciaceae.[1] It was circumscribed in 2000 by Bernhard Marbach and Klaus Kalb. Species in this genus are characterized by having bacilliform conidia typically measuring 8–11 μm long, and a non-inspersed hymenium. The genus is roughly similar in morphology to Buellia.[2]
Description
[edit | edit source]The thallus is crustose: it forms a thin, appressed crust that can be smooth and continuous or break into patches, and in some species it lies mostly within the bark (endophloeodal). It lacks a distinct outer cortex (ecorticate), and a faint marginal prothallus may be present. The photobiont is a unicellular green alga with roughly spherical cells about 8–18 μm across.[3]
Sexual reproductive structures are apothecia that are lecideine (with only a proper margin, not a thalline one) and sessile. The disc is black and flat, wavy, or slightly convex, without a whitish frosting (epruinose). The proper exciple is persistent, the same colour as the disc, and cup-shaped in section, appearing opaque dark brown. The hymenium is clear and not filled with oil droplets (hyaline, not inspersed) and carries a dark, pigmented epithecial layer. Paraphyses are simple or only sparsely branched and tend to stick together in a KOH test; their tips bear a distinct, internally pigmented cap. The asci are club-shaped and usually contain 3–8 spores. Their apical cap (tholus) is well developed and amyloid (staining blue with iodine), sometimes with a slightly more intensely amyloid band beside a broad or narrow conical central plug (a masse axiale) whose rounded apex usually extends through the tholus.[3]
The ascospores are brown to grey-brown, ellipsoid, sometimes slightly curved, and divided by 1–3 cross-walls. They lack a clear outer halo, and occur in two main forms: a Buellia-type with fairly even walls and little thickening, and a Callispora-type with slight to strong wall thickenings near the ends and the middle. Asexual reproduction occurs in immersed pycnidia that produce short, rod-shaped conidia (bacilliform). In chemical tests, many species contain atranorin and/or norstictic acid, while others have no detectable secondary metabolites.[3]
Species
[edit | edit source]- Baculifera cinereocincta (Müll.Arg.) Marbach (2000)
- Baculifera confusa Elix (2020)[4]
- Baculifera curtisii (Tuck.) Marbach (2000)
- Baculifera entochlora (J.Steiner) Marbach (2000)
- Baculifera epifuscescens Elix & Kantvilas (2014)[5]
- Baculifera epiviolascens Marbach (2000)
- Baculifera imshaugiana (R.C.Harris) Marbach (2000)
- Baculifera intermedia Marbach (2000)
- Baculifera intermedioides Marbach (2000)
- Baculifera longispora Marbach (2000)
- Baculifera macromera Elix & Kantvilas (2014)[5]
- Baculifera metaphragmia (C.Knight) Elix & Kantvilas (2014)[5]
- Baculifera metaphragmioides Elix & Kantvilas (2014)[5]
- Baculifera micromera (Vain.) Marbach (2000)
- Baculifera orosa Marbach (2000)
- Baculifera pseudomicromera Marbach (2000)
- Baculifera remensa (Stirt.) Marbach (2000)
- Baculifera tobleri (Zahlbr.) Marbach (2000)
- Baculifera xylophila (Malme) Marbach (2000)
References
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