Corybas Aconitiflorus

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Corybas aconitiflorus Family: Orchidaceae Distribution: Widespread in open forests and woodlands of eastern Australia from north Queensland to Tasmania. Common Spurred helmet orchid. Name: Derivation of Corybas...From Greek corybas, a Name: dancing priest of Phrygia; derivation obscure. aconitiflorus... Having flowers that are similar to those in the unrelated genus Aconitum. Conservation Not considered to be at risk in the wild. Status: General Description: Corybas is a genus of about 100 species of terrestrial orchids of which about 20 occur in Australia. Corybas aconitiflorus Photo: Jill Dark Corybas species are very distinctive orchids because of their relatively large, purplish-red "helmet-shaped" flowers. Corybas aconitiflorus is a terrestrial herb which has a single basal leaf up to 25 mm long by about 15 mm wide, purplish on the underside. The 15 mm diameter flowers occur singly and are seen in late autumn and winter. The plants form large colonies but become dormant in summer when they die back to underground tubers. C. aconitiflorus is cultivated mainly by orchid enthusiasts as it is difficult to maintain for any length of time. Generally the plants are grown in pots in a freely draining, sandy mix. They require good air circulation in a protected position of about 50% sun during the active growing period after flowering. In cultivation, the flowers may abort before fully opening if there is insufficient humidity in the growing environment. When the plants become dormant in summer, repotting of tubers can be carried out. For further information on terrestrial orchid cultivation see Australia's Native Orchids by Les Nesbitt and the guide produced by the Australasian Native Orchid Society (ANOS). Propagation of orchids requires specialised methods and is rarely attempted by the casual grower. The following references provide further information on growing terrestrial orchids from seed. • Australian Terrestrial Orchids from Seed; D K McIntyre, G J Veitch and J W Wrigley • A New Medium for Raising Australian Terrestrial Orchids from Seed; G J Veitch and D K McIntyre Both articles appear in Australian Plants, journal of the Australian Native Plants Society (Australia), March 1973..

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Orchidaceae, Diurideae) En Nouvelle-Calédonie
Diversité du genre Corybas Salisb. (Orchidaceae, Diurideae) en Nouvelle-Calédonie Edouard FARIA 17, rue Victor Hugo, F-70290 Champagney (France) [email protected] Publié le 30 décembre 2016 Faria E. 2016. — Diversité du genre Corybas Salisb. (Orchidaceae, Diurideae) en Nouvelle-Calédonie. Adansonia, sér. 3, 38 (2): 175-198. https://doi.org/10.5252/a2016n2a4 RÉSUMÉ La diversité du genre Corybas Salisb. en Nouvelle-Calédonie est abordée. Le concept de Corybas neoca- ledonicus (Schltr.) Schltr. est révisé et délimité, Corybas aconitifl orus Salisb. est signalé pour la première MOTS CLÉS fois en Nouvelle-Calédonie et trois nouveaux taxons sont décrits : C. echinulus E.Faria, sp. nov., off rant Nouvelle-Calédonie, Province sud, de petites fl eurs, inférieures au centimètre et au sépale dorsal coloré en damier, C. pignalii E.Faria, Mont Mou, sp. nov., la plus grande espèce, dotée d’un labelle aux larges lobes latéraux densément hispidulés et biodiversité, de deux gibbosités glabres à son plancher et C. × halleanus E.Faria, hybr. nat. nov., l’hybride naturel UICN, hybride naturel nouveau, entre ces deux nouvelles espèces. Une clé de détermination pour le genre en Nouvelle-Calédonie ainsi espèces nouvelles. que quelques recommandations pour la conservation de chaque taxon sont proposées. ABSTRACT Diversity in the genus Corybas Salisb. (Orchidaceae, Diurideae) in New Caledonia. Corybas Salisb. diversity in New Caledonia is reassessed, Corybas neocaledonicus (Schltr.) Schltr. con- cept is reviewed and delimited, C. aconitifl orus Salisb. is recorded for the fi rst time in New Caledonia KEY WORDS and three new taxa are described: C. echinulus E.Faria, sp. nov. with a small fl ower, less than one New Caledonia southern province, centimeter, and a dorsal sepal marked with checkerboard pattern, C.
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Monograph (1953) Ofnothofagus
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Tane (1971) 17:39-46 39 THE VEGETATION OF WHALE ISLAND PART II. SPECIES LIST OF VASCULAR PLANTS by B.S. Parris* ABSTRACT A list of vascular plants found on Whale Island is presented together with the abundance of each species and the plant communities in which it occurs. INTRODUCTION This list was drawn up during the July visit and only a few species were added on the August visit. Further collections at more favourable seasons would probably add more species, particularly adventive annuals, to the list. The plant communities are as in Parris et al. (1971). Specimens of most species are lodged in the herbarium of the Auckland Institute and Museum. Nomenclature is as follows: indigenous dicotyledons and ferns, 'Flora of New Zealand' Vol. 1 by H.H. Allan (1961); indigenous monocotyledons, 'Flora of New Zealand' Vol. 2 by L.B. Moore and E. Edgar (1970); adventive species, 'Handbook of the Naturalised flora of New Zealand' by H.H. Allan (1941) and 'A Guide to the Identification of Weeds and Clovers' by A.J. Healy (1970). LIST OF SPECIES * adventive species Psilopsida Psilotum nudum locally abundant under kanuka, occurs under pohutukawa Lycopsida Lycopodium cernuum one locality Sulphur Valley L. varium Pa Hill Filicopsida Schizaeaceae Schizaea fistulosa Sulphur Valley Hymenophyllaceae Hymenophyllum sanguinolentum three localities, in forest Dicksoniaceae Dicksonia squarrosa local - forest and grassland * Plant Diseases Division, D.S.I.R. Auckland. 40 Cyatheaceae Cyathea dealbata common - forest; local - grassland C. medullaris common in forest & grassland Polypodiaceae Pyrrosia serpens abundant throughout Phymatodes diversifolium widespread but not common Thelypteridaceae Thelypteris pennigera local in forest Dennstaedtiaceae Hypolepis tenuifolia locally abundant, kanuka Pteridaceae Paesia scaberula common, more so than bracken Histiopteris incisa locally abundant, kanuka and grassland Pteridium aquilinum local, grassland Pteris tremula abundant throughout P.
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Corybas rotundifolius COMMON NAME Helmet Orchid SYNONYMS Corysanthes matthewsii Cheeseman, Corysanthes rotundifolia (Hook.f.) Hook.f., Nematoceras rotundifolia Hook.f., the New Zealand plant has also been confused with the Australian Corybas unguiculatus (R.Br.) Reichb.f.; Anzybas rotundifolius (Hook.f.) D.L.Jones et M.A.Clem. FAMILY Orchidaceae AUTHORITY Corybas rotundifolius (Hook.f.) Rchb.f. FLORA CATEGORY Vascular – Native ENDEMIC TAXON Yes ENDEMIC GENUS No ENDEMIC FAMILY No STRUCTURAL CLASS Orchids NVS CODE Corybas rotundifolius. Photographer: Ian St ANZROT George CHROMOSOME NUMBER 2n = 36 CURRENT CONSERVATION STATUS 2012 | At Risk – Naturally Uncommon | Qualifiers: EF, Sp PREVIOUS CONSERVATION STATUSES 2009 | At Risk – Naturally Uncommon 2004 | Sparse DISTRIBUTION Endemic. New Zealand: North Island from Te Paki to near the Manawatu Gorge (However, all recent records come from Te Paki south to the Warkworth area with one outlier at Opuatia, near Rangiriri) and recently (2007) discovered on Chatham and (2008) Great Barrier Island HABITAT A species frequenting open though often heavily shaded sites overlying seasonally waterlogged soils. It is often found in deep drifts of leaf litter, particularly under kanuka (Kunzea ericoides (A.Rich.) Joy. Thomps. or in association with regenerating kauri (Agathis australis (D.Don) Lindl.) Unripe seed capsule. Te Paki. Sep 2008. forest. In parts of Northland it is frequently found in gumland scrub, Photographer: Jeremy Rolfe though usually in shaded sites, often in or along the sides of drains. FEATURES Diminutive orchid forming small colonies of 2-6 plants within deep drifts of leaf litter on poorly drained ground usually under regenerating forest or within gum land scrub.
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