Items 1 – 20 of Dumortiera hirsuta (Sw.) Nees you can join if you are interested in participating in a survey for species like Dumortiera hirsuta (Sw.) Nees. National Distribution. United States. Origin: Unknown/Undetermined. Regularity: Regularly occurring. Currently: Unknown/Undetermined. Confidence: Confident. Download scientific diagram | Dumortiera hirsuta (A) Gametophytic thalli (B) Disk shaped antheridia with bristles (C) archegoniophore with several sporophytes.
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Why is dumottiera species a priority in Northern Ireland? Search in all groups Search within this group. Species description The large dark green thalli are up to 12cm long and 2cm wide and these may form large mats or become pendent on steep substrata. Or, Login with your user account:. Antheridiophores with disk-shaped receptacle, with small ventral scales underneath and bristles on margins and dorsal side, stalk short, without assimilatory strip, with 2 rhizoid furrows; rarely, antheridial branches develop in the female receptacles.
Does not include altitudinal distribution, which is hirsuuta under Habitat.
Dumortiera hirsuta : Dumortier’s Liverwort | NBN Atlas
Uses and Management Uses and Management. What you can do The large thallose liverworts are easier to identify than many bryophytes, since with experience most of them can be determined using a x10 hand lens without needing microscopy.
User specific search options User. Species Description – Thallus mm wide, flat, deep green, not tinged with purple. Enumerates geographic entities where the taxon lives. It is easily distinguished, therefore, from the commoner large thallose liverworts of the genera ConocephalumLunularia and Marchantiabut superficially similar to the more distantly related Pellia species. It dumortlera rare and declining.
Dumortiera hirsuta (Sw.) Nees — The Plant List
The current map showing distribution of species is only indicative. Dumortiera hirsuta is easily distinguished from most neotropical Marchantiales by its large, dark-green thallus without epidermal pores and with “bristles” on the dukortiera side. Bryophytes of Wayanad in Western Ghats. Ventral scales in 2 rows, small, hyaline, without oil cells, papillae, or appendage. Marchantia irrigua Wilson ex Hook.
Similar species Although the occurrence of receptacles shows that Dumortiera is a member of the Marchantiales, it differs from most other large thallose liverworts of this advanced order by lacking obvious air chambers and pores on the upper surface of the thallus.
Epidermal pores absent, or at thallus apex only, bounded by a single ring of 4 cells, dumortirea walls thin. Checklists specific search options Observed during. Threats to the species are poorly understood, but elsewhere it is at risk from tree-felling activities that reduce humidity and shade and from water pollution.
India Biodiversity Portal
Taylor Nees, Dumortiera hirsuta var. Involucres tubular, opening at top by a ventral-terminal slit, with bristles. Liverworts Hepaticae and Anthocerotae. Dumortiera hirsuta — Dumortier’s liverwort. A population may also have suffered from pollution of water supplies by nutrient-enriched run-off from agricultural practice. Natural History Natural History.
Home Introduction Selection Criteria:: Rajesh and Madhusoodanan P. Powered by the open source Biodiversity Informatics Platform. Basal tissue with few oil cells, without mucilage cavities.
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