70 likes | 233 Views
440. 390. 5202. 5194. 5206. 8299. Classification of specimens according to Boiteau & Allorge 1979. 3050. 3047. 5203. 5195. 8305. 8300. genus:. Alyxia Banks ex R.Br. 5191. 3048. 5204. 5196. 8803. 8301. circumscription of species rubricaulis. 5201. 3049. 5205. 5197. 8302.
E N D
440 390 5202 5194 5206 8299 Classification of specimens according to Boiteau & Allorge 1979 3050 3047 5203 5195 8305 8300 genus: Alyxia Banks ex R.Br. 5191 3048 5204 5196 8803 8301 circumscription of species rubricaulis 5201 3049 5205 5197 8302 circumscription of subspecies poyaensis species: Alyxia rubricaulis (Baill.) Guillaumin 3961 5198 8303 5008 5199 8304 lectotype 5187 5200 8802 Alyxia rubricaulis subsp poyaensis Boiteau subspecies: 5188 5292 8804 390 5189 5381 8805 holotype 5190 5596 8989 5192 5605 9094 5193 5609 10735
390 440 5202 5194 5206 8299 3050 3047 5203 5195 8305 8300 5191 3048 5204 5196 8803 8301 3049 5201 5205 5197 8302 3961 5198 8303 5008 5199 8304 lectotype holotype 5187 5200 8802 subspecies: 5188 5292 8804 5189 5381 8805 5190 5596 8989 5192 5605 9094 5193 5609 10735 Classification of specimens according to Middleton 2002 genus: Alyxia Banks ex R.Br. species: Alyxia rubricaulis (Baill.) Guillaumin Alyxia poyaensis (Boiteau) DJMiddleton comb.nov.
390 440 5202 5194 5206 8299 3050 3047 5203 5195 8305 8300 3048 5191 5204 5196 8803 8301 circumscription of species rubricaulis 3049 5201 5205 5197 8302 circumscription of species poyaensis 3961 5198 8303 5008 5199 8304 lectotype holotype 5187 5200 8802 subspecies: described in Middletons Revision 5188 5292 8804 5189 5381 8805 5190 5596 8989 5192 5605 9094 5193 5609 10735 Classification of specimens according to Middleton 2002 genus: Alyxia Banks ex R.Br. species: Alyxia rubricaulis (Baill.) Guillaumin Alyxia poyaensis (Boiteau) DJMiddleton comb.nov.
390 390 440 5202 5202 5194 5206 5206 8299 3047 3050 3050 5203 5203 5195 8305 8305 8300 Name shared (synoymous) but concepts differ as shown by circumscription 5191 3048 5191 5204 5204 5196 8803 8803 8301 synonymy 5201 5201 3049 5205 5205 5197 8302 Alyxia poyaensis (Boiteau) DJMiddleton comb.nov. Alyxia rubricaulis (Baill.) Guillaumin 3961 5198 8303 5008 5199 8304 5187 5200 8802 Alyxia rubricaulis subsp poyaensis Boiteau 5188 5292 8804 5189 5381 8805 5190 5596 8989 5192 5605 9094 5193 5609 10735 Comparison of alternative classification of specimens genus: Alyxia Banks ex R.Br. Alyxia poyaensis (Boiteau) DJMiddleton comb.nov. species: Alyxia rubricaulis (Baill.) Guillaumin Alyxia rubricaulis subsp poyaensis Boiteau subspecies:
390 390 440 5202 5202 5194 5206 5206 8299 3050 3047 3050 5203 5203 5195 8305 8305 8300 concept ofAlyxia rubricaulis (Baill.) Boiteau according to DJMiddleton concept ofAlyxia rubricaulis (Baill.) Boiteau according to Boiteau 5191 3048 5191 5204 5204 5196 8803 8803 8301 5201 5201 3049 5205 5205 5197 8302 3961 5198 8303 5008 5199 8304 5187 5200 8802 5188 5292 8804 390 5189 5381 8805 5190 5596 8989 5192 5605 9094 5193 5609 10735 Comparison of alternative classification of specimens genus: Alyxia Banks ex R.Br. Alyxia poyaensis (Boiteau) DJMiddleton comb.nov. species: Alyxia rubricaulis (Baill.) Guillaumin Alyxia rubricaulis subsp poyaensis Boiteau subspecies:
An author can assert that synonymy exists between two concepts in separate classifications, or this can be assigned on the basis of shared circumscriptions (i.e. the similarity in the set of specimens included) (i.e. the case here with poyaensis) Because of the rules of nomenclature valid names might be shared between taxa that are not considered identical, and have different circumscriptions (the case here with rubricaulis). The Prometheus I/II integrated database holds data on described specimens and taxonomic hierarchies (and names, which can be calculated by the rules of priority etc.). Therefore it should be possible to base taxon circumscription on descriptive data (or ‘characters’). This will depend on collection of sufficient comparable high quality descriptive data.
Recorded evidence for this distinction Does Middleton consider deccurent to mean attenuate? mucronate is not a ‘distinguishing’ feature only one specimen is scored for this ‘distinguishing’ feature Middleton’s distinction between A.rubricaulis and A.poyaensis (A.poyaensisis) ... isclose to A.rubricaulis but differs from it in the attenuate leaf base, the leaf blade apex always being mucronate even when the leaf is rounded, the fewer flowered inflorescences and the extremely flat peduncles by which it is most readily identified.