Biology:Ctenidium multiseriatum

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Short description: Species of moss

Ctenidium multiseriatum
Scientific classification edit
Kingdom: Plantae
Division: Bryophyta
Class: Bryopsida
Subclass: Bryidae
Order: Hypnales
Family: Hypnaceae
Genus: Ctenidium
Species:
C. multiseriatum
Binomial name
Ctenidium multiseriatum
S.He & M.K.Thomas

Ctenidium multiseriatum is a species of moss in the family Myuriaceae. It is endemic to Hawaii, where it has been recorded from the island of Maui.[1]

Description

Ctenidium multiseriatum forms small, yellowish-green mats with creeping stems up to approximately 25 mm long. The stems are irregularly subpinnately branched and bear foliose pseudoparaphyllia. Leaves are falcate, ovate at the base, and gradually taper to an acuminate apex, with weakly serrulate margins.[1]

Laminal cells are elongate and thick-walled, typically 25–35 μm long, and are distinctly prorate at both the upper and lower ends. The species is further characterized by multiseriate paraphyses, ecostate perichaetial leaves with subentire margins, and dimorphic branch leaves.[1]

Distribution and habitat

The species is known only from Maui, Hawaii, where it was collected in wet forest habitat. It grows at the base of trees in lowland forest environments, including areas with invasive plant species.[1]

Taxonomy

Ctenidium multiseriatum was described in 2024 by Si He and Miles K. Thomas based on material collected in 2021 on Maui.[1]

The species is distinguished from all other members of the genus Ctenidium by a unique combination of morphological traits, including multiseriate paraphyses and laminal cells that are prorate at both ends.[1] These features are rare within the genus and support its recognition as a distinct species.

It shows morphological similarities to the Hawaiian species Ctenidium elegantulum, but differs in branching pattern, cell structure, and the absence of flagellaceous microphyllous branches.[1]

Classification

The genus Ctenidium has historically been placed in the family Hypnaceae, but molecular studies have resulted in its reclassification within the Myuriaceae.[1]

References

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 He, Si; Thomas, Miles K. (2024). "Ctenidium multiseriatum (Bryophyta: Myuriaceae), a new moss species from Maui, Hawai‘i". Journal of Bryology 45 (4): 288–292. doi:10.1080/03736687.2023.2298039. 

Wikidata ☰ Q138848667 entry