CHR 580343 – Warnstorfia fluitans (Hedw.) Loeske
Data provider:
Allan Herbarium
Barcode:
CHR 580343
Specimen type:
Packet
Database record added:
10 March 2006
Database record updated:
10 March 2006
Components
Primary component
Active identification
Determined name:
Warnstorfia fluitans (Hedw.) Loeske
Determiner:
Allan Fife
Identification date:
2006-03 (Verbatim: March 2006)
Preferred name:
Warnstorfia fluitans (Hedw.) Loeske
Division:
Bryophyta
Class:
Bryatae
Family:
Amblystegiaceae
Identification type:
Determination
Other identifications
Identification
Determined name:
Drepanocladus fontinaliopsis (C.M.) Broth.
Determiner:
E. B. Bartram
Identification date:
Preferred name:
Warnstorfia fluitans (Hedw.) Loeske
Active:
no
Identification type:
Determination
Identification
Determined name:
Drepanocladus fluitans (Hedw.) Warnst. var. berggrenii (C.Jens.) C.Jens. im Weim.
Determiner:
R. Ochyra
Identification date:
1984-07 (Verbatim: July 1984)
Preferred name:
Warnstorfia fluitans (Hedw.) Loeske
Active:
no
Identification type:
Determination
Collection events
Primary collection event
Collection event type:
Field
Standard locality
Location:
Rotorua - Tarawera area
Verbatim locality:
Rotorua - Tarawera area
Verbatim collector:
S. Beggren
Standardised collector:
S. Beggren
Verbatim date:
Land District:
South Auckland Land District
Country:
New Zealand
Specimen notes
Herbarium history:
[Herb. W. Martin]
Supplementary remarks:
S. Berggren 2577, 1874, cited by Dixon (1929, p. 318) as from “Rotorua, Tarawera ” (The WELT bears the Berggren collection number and year of collection, while the CHR duplicate lack this information.)
This is one of the two Berggren specimens cited by Dixon (1929, p. 318) as N.Z. examples of Drepanocladus fontinaliopsis (Müll.Hal.) Dixon (S. Berggren. This name has a Kerguelen type.
This distinctive form of W. fluitans was first collected in 1874 by S. Berggen at/near Rotorua. In this form the plants are slender with leaves straight, ± erect, and sharply denticulate, and the costae poorly defined and short (c. ¼ the leaf). Two such collections made by S. Berggren are of particular interest as they were cited by Dixon (1929, p. 318) as N.Z. examples of Drepanocladus fontinaliopsis (Müll.Hal.) Dixon. S. Berggren 2577 (in both WELT & CHR) has been examined and I consider it an extreme environmental variant of Warnstorfia fluitans, and unworthy of taxonomic recognition (the other Berggren collection cited by Dixon has not be located).
The European-based name Drepanocladus fluitans var. berggrenii (C.E.O.Jensen) C.E.O.Jensen has been applied by R. Ochyra to S. Berggren 2577, and to the morphologically very similar K.W. Allison 437 ex Rotorua (in CHR). I know little of the var. berggrenii; Nyholm (1969, p. 428) provides the following diagnosis for this taxon: “a poor, slender plant with short, slightly curved leaves, short and thin, ± branched nerve.”
Given the great variation exhibited by W. fluitans, neither Drepanocladus fontinaliopsis nor Drepanocladus fluitans var. berggrenii are consider worthy of recognition in a N.Z. context.
Allan Fife, March 2006
Allan Fife, March 2006
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