Derrick Posted May 22, 2014 Report Share Posted May 22, 2014 Anthorrhiza camilla Matthew Jebb published in Blumea 37 (2) 1993. Tuber globose, small, to 15 x 10 cm, surface irregular, green, spined, and with a single, large 1- 4 cm entrance hole at its base and numerous smaller (1.5- 2mm.) round and lipped entrance holes on its surface and apex including near the stem. Spines reach 1.6 cm long, are irregularly stellate with 1- 5 branches. Internal tunnel/chamber complexes have both warted and smooth-walled examples. Stems one or two, upcurved, to 25 cm long, 2.5 cm thick and are more densely covered with spines that are even more branched than tuber spines; they are up to 2.5 cm long and have 8- 20 side branches Infauna: According to Huxley & Jebb 1991, invariably inhabited by Anonychomyrma scrutator (my correction) ants (? but see A. caerulea.) Habitats/Record: A low-level epiphyte in mossy forests occurring at altitudes of 1600-2000 m. (5249-6562 ft.) It was discovered by Dr Camilla Huxley in Morobe Province, 8 k south of Garassa airstrip on the PNG mainland. Anthorrhiza camilla.jpg] Link to comment Share on other sites More sharing options...
dracophyllum Posted December 24, 2014 Report Share Posted December 24, 2014 Im not sure but this photo of a PNG ant plant looks more Anthorrhiza than anything else. It has the stellate spines and the rows of holes much like the picture. https://www.flickr.com/photos/thirnbeck/467820589/in/pool-1475761@N21 Link to comment Share on other sites More sharing options...
Derrick Posted January 1, 2015 Author Report Share Posted January 1, 2015 The plant in Thirnbeck's most interesting image is a Myrmecodia taxon. https://www.flickr.com/photos/thirnbeck/467820589/in/pool-1475761@N21 Although there is only a hint of stem, it lacks the dense spines of A. camilla. Also, the very distinct circle of ant openings (more so than those on Anthorrhiza) is a feature of a number of Myrmecodia tuberosa "forms" sensu Huxley & Jebb. Anthorrhiza C. R. Huxley & Jebb, (Camilla Rosalind Huxley & Matthew H. P. Jebb) published in the Bulletin du Jardin Botanique National de Belgique 60, (1990). Description. All species have a single inflorescence in one axil at each node, but this may be hidden by dense spines; flowers are 4 merous. Myrmephytum are similar but have six merous flowers, the only hydnophyta to do so. According to C. R. Huxley & Jebb, lowland Anthorrhiza species somewhat resemble Hydnophytum while species occurring at or above 1600 m. (5249 ft.), are superficially more like Myrmecodia. Habitats range from sea level to around 3000 m. (9843 ft.) primarily in stunted, undisturbed or disturbed forests on poor soils, and on agricultural trees. (Huxley & Jebb 1991b.) Range. The genus currently consists of nine species primarily from the Papuan (or Bird’s Tail) Peninsula in southeast Papua New Guinea and islands situated in the Massim, an ancient Melanesian inter-island trade region now part of Milne Bay Province. This places the genus quite some distance from Myrmephytum another small hydnophyte genus that conversely occupies the Bird’s Head (Vogelkop) and Bomberai Peninsulas of West Papua Province, Indonesia, which sits at the opposite north-west end of New Guinea Island with more species in the Philippine islands to the north. No Anthorrhiza or Myrmephytum are recorded in the central New Guinea land mass that sits between, except for C. R. Huxley & Jebb’s little known Myrmephytum sp1 collected at Dalman, 45 km inland from Nabire on the north-west coast of Papua Province, West New Guinea Island, which however, is not far from the isthmus that leads to West Papua Province. Link to comment Share on other sites More sharing options...
Derrick Posted January 1, 2015 Author Report Share Posted January 1, 2015 My previous attempts to locate Tekai were unsuccessful, but it is here in one of the areas Andreas has visited. http://www.geographic.org/geographic_names/name.php?uni=-3746635&fid=2379&c=indonesia Link to comment Share on other sites More sharing options...
jeff Posted January 11, 2015 Report Share Posted January 11, 2015 Bonjour it is a shame no leaves and stem to see the clypeoli and alveoli . I am OK with DERRICK rather M.tuberosa 'versteegii ' or M.jobiensis all the anthorrhiza are in PNG not in irian jaya , TEKAI map http://www.maplandia.com/indonesia/irian-jaya/sorong/tekai/ jeff Link to comment Share on other sites More sharing options...
Derrick Posted June 3, 2015 Author Report Share Posted June 3, 2015 type description in PDF format http://dare.uva.nl/cgi/arno/show.cgi?fid=565425. Link to comment Share on other sites More sharing options...
Aurélien Posted June 5, 2015 Report Share Posted June 5, 2015 Nice paper! Thanks Derrick. Link to comment Share on other sites More sharing options...
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