Lejeunea gracilipes (Taylor) Spruce. (1884: 213)

Renner, Matt A. M., 2013, A new subspecies of Acrolejeunea arcuata, and notes on typification, synonymy, and distribution of other Australasian Lejeuneaceae, Phytotaxa 83 (1), pp. 39-53: 48-49

publication ID

http://doi.org/ 10.11646/phytotaxa.83.1.2

persistent identifier

http://treatment.plazi.org/id/D71CBF32-0156-C63E-FF5F-FE2BFCB482E0

treatment provided by

Felipe

scientific name

Lejeunea gracilipes (Taylor) Spruce. (1884: 213)
status

 

Lejeunea gracilipes (Taylor) Spruce. (1884: 213)   .

Taxilejeunea gracilipes (Taylor) Stephani (1914: 506)   .

Omphalanthus gracilipes Taylor (1846: 385)   .

Type:—PACIFIC ISLES. Without more specific locality, Nightingale s.n., ex herb. Hooker, ex herb. Taylor (holotype (?): FH!)

Hygrolejeunea norfolkensis (Stephani) Stephani (1914: 573)   , syn. nov.

Lejeunea norfolkensis Stephani (1889: 171)   .

Type:— AUSTRALIA. Norfolk Island , Robinson s.n. ex herb. Steph. ( BM!)  

Hygrolejeunea norfolkensis   was treated as synonym of L. discreta   by Grolle (1981). Lejeunea gracilipes   and L. discreta   differ most conspicuously in the perianths, which are 5-plicate and have a short rostrum in L. discreta   , but eplicate with a long rostrum that may flare in L. gracilipes   . The two species also differ in the shape and spacing of underleaves, with L. discreta   having ovate underleaves that are contiguous to imbricate, and L. gracilipes   having more rotund underleaves that are typically remote. The lobules of L. gracilipes   are also more variable along a shoot, with transitions between the production of normal and explanate lobules common along shoots, and the two extremes are linked by intermediates. The type specimen of Hygrolejeunea norfolkensis   in BM has a single perianth on it, having the long beak characteristic of the Taylor species. The perianth has been compressed due to shipping and storage. Stephani appears to have misinterpreted the flattened eplicate perianth for a compressed 4-carinate perianth, as suggested by his Icones illustration. The variable production of normal and explanate lobules with intermediates, and the remote underleaves are vegetatively characteristic of Taylor’s species, not of Lindenberg’s.

Additional Specimens examined:— NEW ZEALAND. North Island , Papakauri, December 1874, S   . Berggren, as L. tumida   (G-19655!, G-19625!); North Island , Ohaewai, October 1874, S   . Berggren, as L. tumida   (G-19651!); North Island, Western Northland Ecological Region , Tutamoe Ecological District , Waipoua Forest , Kawerua Road , 35° 37’ S 173° 29’ E, 450 m, 27 November 1994, J. E GoogleMaps   . Braggins 94/257 ( AK 257382 View Materials !); North Island, Maungataniwha Ecological District , northern edge of Herekino forest , Kiwanis Reserve , Okahu Stream , 35° 10’ S 173° 16’ E, 90 m, 7 February 1995, J. E GoogleMaps   . Braggins 95/081 ( AK 255018 View Materials !); North Island, Eastern Northland & Islands Ecological Region and District , Mt Manaia , track to summit, 35° 55’ S 174° 30’ E, 120 m, 8 January 1997, J. E GoogleMaps   . Braggins 97/066 B ( AK 253576 View Materials !); North Island, Auckland Ecological Region , Rodney Ecological District , Leigh Marine Laboratory Reserve , Goat Island , 36° 16’ S 174° 48’ E, 60 m, 1 November 1986, J. E GoogleMaps   . Braggins 86/257 ( AK 258981 View Materials !); North Island, Coromandel Ecological Region , Great Barrier Ecological District , Great Barrier Island , Tataweka , northern end, 36° 04’ S 175° 22’ E, 350 m, 9 April 1980, E. K GoogleMaps   . Cameron s.n. ( AK 258261 View Materials !); North Island, Raukumara Ecological Region , Motu Ecological District , east Whanarua Bay , Motu Papaku , inner islet, coastal slope, 37° 41’ S 177° 48’ E, 2 m, 1 October 1999, E. K GoogleMaps   . Cameron 9842 ( AK 242363 View Materials !)   .

Distribution and ecology:— Lejeunea gracilipes   is a trunk and branch epiphyte in subtropical and warm temperate rainforests, rarely terrestrial on dry banks. In New Zealand L. gracilipes   is particularly conspicuous in gully forests, where it often forms extensive pure mats on palm trunks. In Australasia L. gracilipes   occurs on Raoul Island in Kermadec Group from where it was first reported for the New Zealand Botanical Region ( Campbell 1977), and is widespread in lowland forest habitats throughout the upper third of the North Island, including Northland, north Auckland, Coromandel, Bay of Plenty and the East Coast. In Australia L. gracilipes   is known from Norfolk Island, and its occurrence on mainland Australia in rainforest habitats is anticipated.

Recognition:— Lejeunea gracilipes   is distinctive in its pellucid colour, due to granular ornamentation on the leaf lobe cells, and its inflated obpyriform lobules. Vegetatively L. gracilipes   is very similar to L. discreta   . As noted above, perianths provide the best source of diagnostic characters, in L. gracilipes   the perianths are eplicate, and have a long rostrum that may flare at its mouth.

FH

Fort Hays

BM

Bristol Museum

S

Department of Botany, Swedish Museum of Natural History

J

University of the Witwatersrand

E

Royal Botanic Garden Edinburgh

AK

Auckland War Memorial Museum

B

Botanischer Garten und Botanisches Museum Berlin-Dahlem, Zentraleinrichtung der Freien Universitaet

K

Royal Botanic Gardens

Kingdom

Plantae

Phylum

Bryophyta

Class

Jungermanniopsida

Order

Porellales

Family

Lejeuneaceae

Genus

Lejeunea

Loc

Lejeunea gracilipes (Taylor) Spruce. (1884: 213)

Renner, Matt A. M. 2013
2013
Loc

Taxilejeunea gracilipes (Taylor)

Stephani, F. 1914: )
1914
Loc

Hygrolejeunea norfolkensis

Stephani, F. 1914: )
1914
Loc

Lejeunea norfolkensis

Stephani, F. 1889: )
1889
Loc

Omphalanthus gracilipes

Taylor, T. 1846: )
1846