identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
8E2BF063C518FFCEAA77FA925B657F8B.text	8E2BF063C518FFCEAA77FA925B657F8B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lygodium	<div><p>COMPARISON WITH LYGODIUM RETICULATUM AND LYGODIUM MICROPHYLLUM</p> <p>On the basis of morphological comparison of herbarium materials held at RBG Kew, UK, the most similar other species in the genus Lygodium to L. hians seems to be L. reticulatum. L. reticulatum bears its sorophores mainly laterally and to a degree around the tips of its fertile lamina, thus appearing somewhat intermediate between L. hians and most other Lygodium. L. reticulatum is, however, a much more typical Lygodium, with the sporophyte life-cycle concentrated upon much more extensive development of climbing fronds into which vegetative and fertile functions of the plant are mainly focussed, and ecologically specialised to forest-margin habitats at mostly mid- to low altitudinal range. The reticulate venation pattern of the sterile fronds differs from the non-reticulate, dichotomous venation in L. hians fronds (Fig. 4A; 5B). L. reticulatum spores are reticulate, with a slightly more pronounced sculptural pattern on the distal than on the proximal surface (van Konijnenburg-van Cittert 1991, 1992). Their reticulum is quite regular, and thus different from the very irregular, verrucate-reticulate sculpture of L. hians. They measure between 80 and 120 µm in diameter and are thus slightly smaller than L. hians spores. L. reticulatum also occurs in New Caledonia, and is additionally present more widely, ranging to the New Hebrides, northern Queensland and the Polynesian islands (e.g., Copeland 1929, 1932, Brownlie 1969, and herbarium data).</p> <p>Another species L. hians should be compared with, is L. microphyllum, also in the subgenus Odontopteris. Although dissimilar to L. hians in general morphology with its typical climbing fronds, it is one of the very few Lygodium species that bears its</p> <p>sorophores all around the margin, from the base of the fertile lamina to the tips (e.g., Copeland 1929, 1932, and herbarium data). Its spores are smaller than those of L. hians and L. reticulatum, c. 85 µm in diameter, with a slightly more rugulate than reticulate morphology (van Konijnenburg-van Cittert 1981).</p> <p>SYNTHESIS OF LYGODIUM HIANS CHARACTERISTICS Hence the combination of examination of this colony of L. hians, plus that of known herbarium material from all other known localities, clearly demonstrates:</p> <p>– the existence of an exceptional life-form in Lygodium;</p> <p>– the ability of this determinate-fronded life-form to achieve extensive ‘ground-clothing’ local development;</p> <p>– the nature of this ability to persist (semi-permanently) as a member of a rainforest floor vegetation community;</p> <p>– the unusual position of sorophores grouped terminally and sub-terminally on fertile fronds;</p> <p>– that spores are irregularly verrucate to rugulate to irregularly reticulate characteristic of those of Lygodium subgenus Odontopteris;</p> <p>– that the most closely comparable modern species is L. reticulatum, which differs in having reticulate frond venation, regularly reticulate spores and a more typical climbing frond growth form.</p> </div>	https://treatment.plazi.org/id/8E2BF063C518FFCEAA77FA925B657F8B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Page, Christopher N.;Collinson, Margaret E.;Van Konijnenburg-Van Cittert, Johanna H. A.	Page, Christopher N., Collinson, Margaret E., Van Konijnenburg-Van Cittert, Johanna H. A. (2014): Lygodium hians E. Fournier (Pteridophyta, Schizaeales) - an endemic unusual groundclothing member of a modern climbing fern genus in New Caledonia. Adansonia (3) 36 (1): 21-43, DOI: 10.5252/a2014n1a3, URL: http://www.bioone.org/doi/abs/10.5252/a2014n1a3
