00489nas a2200157   4500008004100000245007100041210006900112260001200181300002100193490001000214653001400224653001200238653001700250100001500267856004900282       1994                        eng d00aTuber development of three orchid species at Hokio, west of Levin.0 aTuber development of three orchid species at Hokio west of Levin  c1994///  a70 - 86 (1994) -0 vno.4610aAcianthus10aCorybas10aRoot anatomy1 aDuguid, F.  uhttps://acianthinae.myspecies.info/node/204101877nas a2200169   4500008004100000245010500041210006900146260001400215300001600229490000700245520134300252653001401595653001701609100002201626700001901648856004001667       1995                        eng d00aSubterranean axes in tribe Diurideae (Orchidaceae): Morphology, anatomy, and systematic significance0 aSubterranean axes in tribe Diurideae Orchidaceae Morphology anat  c1995/12//  a1473 - 14950 v823 aThe morphological and anatomical nature of perennating storage organs of the predominantly Australasian orchid tribe Diurideae (Orchidoideae: Orchidaceae) as well as anatomical concepts in tribes Orchideae and Diseae of Orchidoideae have been problematic for 150 yr, reflected in conflicting or vague terminology and questions about polystely and even monophyly of Orchidoideae. From a representative survey of underground organs of 145 species in 37 ingroup genera (Diurideae) and two outgroup genera (Spiranthes and Disa), the so-called "root-stem tuberoids" are here interpreted as root tubers (except for the stem tubers of Rhizanthella) borne on either droppers or stolonoid roots. All root tubers examined are bounded by a 1-4 layered velamen and exodermis, whereas droppers and stolonoid roots may have velamen-exodermis or a simple epidermis depending on the taxon and often bear multiseriate or uniseriate trichomes associated with mycorrhiza (as do roots of some taxa). The "polystely" reported in tubers of many Orchideae also occurs in tubers of many Diurideae but represents only dissection of the siphonostele into 2-13 traces. Cladistic analyses of data show extraordinarily high levels of homoplasy in characters related to root, dropper/stolonoid root, and tuber, so that these characters alone are of limited usefulness.10aDiurideae10aRoot anatomy1 aPridgeon, Alec, M1 aChase, Mark, W  uhttp://www.jstor.org/stable/244617601851nas a2200157   4500008004100000245010500041210006900146260001400215300001600229490000700245520134300252653001701595100002201612700001901634856004001653       1995                        eng d00aSubterranean axes in tribe Diurideae (Orchidaceae): Morphology, anatomy, and systematic significance0 aSubterranean axes in tribe Diurideae Orchidaceae Morphology anat  c1995/12//  a1473 - 14950 v823 aThe morphological and anatomical nature of perennating storage organs of the predominantly Australasian orchid tribe Diurideae (Orchidoideae: Orchidaceae) as well as anatomical concepts in tribes Orchideae and Diseae of Orchidoideae have been problematic for 150 yr, reflected in conflicting or vague terminology and questions about polystely and even monophyly of Orchidoideae. From a representative survey of underground organs of 145 species in 37 ingroup genera (Diurideae) and two outgroup genera (Spiranthes and Disa), the so-called "root-stem tuberoids" are here interpreted as root tubers (except for the stem tubers of Rhizanthella) borne on either droppers or stolonoid roots. All root tubers examined are bounded by a 1-4 layered velamen and exodermis, whereas droppers and stolonoid roots may have velamen-exodermis or a simple epidermis depending on the taxon and often bear multiseriate or uniseriate trichomes associated with mycorrhiza (as do roots of some taxa). The "polystely" reported in tubers of many Orchideae also occurs in tubers of many Diurideae but represents only dissection of the siphonostele into 2-13 traces. Cladistic analyses of data show extraordinarily high levels of homoplasy in characters related to root, dropper/stolonoid root, and tuber, so that these characters alone are of limited usefulness.10aRoot anatomy1 aPridgeon, Alec, M1 aChase, Mark, W  uhttp://www.jstor.org/stable/2446176