ALBERT

Description: Dispela ripot i toktok long wok bilong Dr C. Kalkman na Mr W. Vink, bilong Rijksherbarium long Leiden, Holland, wantaim Mr A. N. Gillison na Mr D. G. Frodin bilong Division bilong wok long Botany, long Lae. Oli bin mekim dispela wok long yar 1966 long ol dispela pies klostu long Tari: mauden Ambua, mauden Ne, mauden Kerewa na wanpela pies istap namel oli kolim Ibiwara. Oli bungim ol plaua, ol lip bilong diwai na ol diwai; olgeta samting em oli bungim wantaim inap long 1,975. Bihain, bai oli salim ol dispela samting igo long ol masta long university or bigpela skul we oli wokim wanpela buk oli kolim Flora. Dispela ripot bai toksave long ol kain diwai i stap long bus na ol kain plaua antap long mauden. Ripot ia i pinisim lukluk long plaua, long lain oli kolim Ericaceae i stap long ol dispela ples na antap long mauden Giluwe, mauden Kubor na mauden Wilhelm. Mipela i laik tok tenkyu long ol pipal bilong Tigibi na Benaria em oli bin wok wantaim mipela.

Description: The primitive woody Angiosperm family Winteraceae is centred in the southwest Pacific, has an outpost in Madagascar (1 species), and a section of Drimys (4 species) in the New World. Pseudowintera is restricted to New Zealand, the Old World section Tasmannia of Drimys extends from the Philippines to Tasmania.\nSince A. C. Smith\xe2\x80\x99s review of the family in 1943 about ten times as much material has become available and it appears that the taxonomy of the section Tasmannia is far more complicated than it seemed to be in 1943. This induced me to make a field study in New Guinea and to pay special attention to its morphology in the hope of finding additional criteria. On this basis the Australian species of Drimys could be better defined but the characters of the New Guinean taxa (Smith: 29 species) proved to be highly unstable.\nIt was found that in the section Tasmannia the stomata are occluded by waxy plugs. The structure of the inflorescence is described and compared with that in section Drimys. In the flower two zones are distinguished. In the lower zone the floral appendages are arranged in (sub)opposite pairs, in the higher zone they are arranged according to the space available at the greatest possible distance from a focus of the floral apex which I termed \xe2\x80\x98activity centre\xe2\x80\x99; this centre often does not coincide with the \xe2\x80\x98topographical apex\xe2\x80\x99. The tilt of the floral apex appears to influence the arrangements as well. Shifting of determination factors in relation to the available locations on the floral apex is assumed to play an important role.\nAs for the specific delimitation, the New Guinean material appeared to be the crux. The very heterogeneous material did not show correlated discontinuities in characters, which made it impossible to reach a division into species. The variability of the resulting very complex species Drimys piperita is described with the aid of a non-taxonomic subdivision, the units of wich are called \xe2\x80\x98entities\xe2\x80\x99. Field studies revealed that local populations are often very stable, but the morphological discontinuities between such local populations are obscured by material from other localities. It is supposed that vegetative propagation as observed in the field, combined with incidental cross-breeding, may be of importance in establishing such a situation.\nIn Australia besides D. piperita four other species can be distinguished.\nThe sections of Drimys are maintained, although Ehrendorfer c.s. and Smith proposed raising them to generic rank.\nIn Pseudowintera the arrangement within the inflorescence is spiral, not decussate as described earlier, and a terminal flower is present. Minute hairs on bracts and young leaves, the mode of opening of the calyx cupule, and details of the lower leaf surface are used as a new set of specific characters. The fact that about twenty per cent of the specimens show varying combinations of specific characters is thought to be caused by hybridisation.

Description: Dispela ripot i toktok long wok bilong Dr C. Kalkman na Mr W. Vink, bilong Rijksherbarium long Leiden, Holland, wantaim Mr A. N. Gillison na Mr D. G. Frodin bilong Division bilong wok long Botany, long Lae. Oli bin mekim dispela wok long yar 1966 long ol dispela pies klostu long Tari: mauden Ambua, mauden Ne, mauden Kerewa na wanpela pies istap namel oli kolim Ibiwara. Oli bungim ol plaua, ol lip bilong diwai na ol diwai; olgeta samting em oli bungim wantaim inap long 1,975. Bihain, bai oli salim ol dispela samting igo long ol masta long university or bigpela skul we oli wokim wanpela buk oli kolim Flora.\nDispela ripot bai toksave long ol kain diwai i stap long bus na ol kain plaua antap long mauden. Ripot ia i pinisim lukluk long plaua, long lain oli kolim Ericaceae i stap long ol dispela ples na antap long mauden Giluwe, mauden Kubor na mauden Wilhelm.\nMipela i laik tok tenkyu long ol pipal bilong Tigibi na Benaria em oli bin wok wantaim mipela.