Nannotax3 - ntax_Farinacci - Chrysotila

CATALOG - Chrysotila


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Original descriptions of taxa. For coccolithophores, and many calcispheres, these are pages from the Farinacci & Howe Catalog of Calcareous Nannofossils. In other cases (e.g. non-calcifying haptophytes) the data is directly compiled on this site. The "Catalogue of Calcareous Nannofossils" was originally compiled by Prof A. Farinacci 1969-1989, since 2000 it has been updated and extended by Richard Howe - see The Farinacci and Howe Catalog - an Introduction.
Taxa are sorted alphabetically for simple browsing, or you can use search boxes at the top & bottom of the page


Chrysotila lamellosa Anand 1936
= Ruttnera lamellosa
Chrysotila stipitata Anand 1936
= Chrysotila stipitata


Current identification/main database link: Chrysotila Anand 1936

Compiled data

Citation: Chrysotila Anand 1936
Rank: Genus
Type species: Chrysotila stipitata Anand 1936
Current citation: Chrysotila Anand 1936


Original Description

Chrysotila stipitata Gen. et sp. nov. This alga is chiefly characterised by its dendroid habit, the pear shaped or oval cells being borne singly at the ends of simple or branched hyaline stalks, which consist of successive cup shaped strata. These stalks arise by periodic contraction of the protoplast in the upward direction which is followed each time by the secretion of a membrane. The part of the parent cell left empty and intervening between the basal part of its wall and the base of the new cell appears as a cup. As this process of rejuvenation takes place repeatedly the original protoplast becomes carried up on a stalk of increasing length in which the successive membranes appear as series of curved septa. In the method of stalk formation C. stipitata resembles Kuckuck's Prasino­cladus, as described in detail by Lambert, where the stalks are likewise made up of compartments due to repeated rejuvenation of the protoplast. In C. stipitata, however, the protoplast never slips out entirely from the parent cell, so that the segments of the stalks are much shorter.

Size:

Etymology:

Extra details from original publication
The dendroid types of colony hitherto known among Chrysophycereae are represented by forms like Pascher's Chrysodendron, in which flagellated cells, which may readily become detached, are seated singly at the end of a system of delicate forked stalks. So far, however, no dendroid types have been described parallel to forms like Kuckuck's Prasinocladus or Borzi's Hormotila among the Chlorophyceae. Chryostila stipitata fills this gap, resembling them in habit and the former in the manner of form­ation of the colony.

Editors' Notes

References:

Anand, P. L. (1936). Seven new Chrysophyceae from the south-east coast of England. In, unknown (ed.) Twenty-third Indian Science Congress. Royal Asiatic Society of Bengal, Calcutta 282-283. gs


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Chrysotila: Catalog entry compiled by <% compiler %>. Viewed: 4-12-2022

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=54875 Go to Archive.is to create a permanent copy of this page - citation notes
Link to WoRMS (World Register of Marine Species)

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