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Fungi that form fusiform skeletal hyphae bound by generative hyphae are said to have sarcodimitic hyphal systems. A few fungi form fusiform skeletal hyphae, generative hyphae, and binding hyphae, and these are said to have sarcotrimitic hyphal systems. These terms were introduced as a later refinement by E. J. H. Corner in 1966. [15]
The hyphal system is monomitic, meaning it contains only generative hyphae. These hyphae are hyaline with thin walls, and have clamp connections. [1] References
Favolus has a dimitic hyphal system, containing both generative and skeletal-binding hyphae. The generative hyphae are either with or without clamp connections. Skeletal-binding hyphae are usually dominating, arboriform (tree-like), and hyaline. The cap cuticle is not differentiated into distinct layers; if present it comprises non-agglutinated ...
Podoserpula has a monomitic hyphal structure, meaning that it only contains generative hyphae, which are relatively undifferentiated and can develop reproductive structures. These hyphae are thin-walled, hyaline (translucent), branched, and up to 10 μm thick. They have distinct, often swollen, clamp connections at the septa.
This fossil, classified in the form genus Palaeancistrus, has hyphae that compare with extant saprophytic basidiomycetes. [5] The oldest known clamp connections exist in fossilized hyphae growing in the fossil fern Botryopteris antiqua , which predate Palaeancistrus by about 25 Ma .
Hydnellum peckii is similar in appearance, but has an acrid taste, and clamp connections in its hyphae. [9] Hydnellum spongiosipes is readily confused with H. ferrugineum, and several authors have historically considered the two species to be the same; molecular studies, however, indicate that the two fungi are closely related, but distinct. [21]
The hyphal system of Daedaleopsis confragrosa is trimitic, meaning that there are three types of hyphae in the fruit body: skeletal hyphae, which provide structural support, are thick walled, measuring 3–7 μm in diameter; generative hyphae, responsible for new growth, can be either thin- or thick-walled, may contain clamps, and measure 2–6 ...
The generative hyphae have clamps and are intricately branched. The skeletal hyphae, in contrast, are thick-walled, rarely branched, and measure 2–4.5 μm in diameter. Although cystidia are absent from the hymenium , there are fused cystidioles (immature cystidia) measuring 15–20 by 4–5 μm.