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BOTANY. 



173 



' iuflexisj in centro liuea duplici tuberculorum. Involiicrum tripartltiinij triflorunij fructiferuin 



haud gcarioro-explanatum. 



Allionia, Linn, pro parte, Cliois. (This genus should: by right, have borne the name of 

 i Wedelia, Lcejl.^ and Oxyhaphus that of Allionia, Loo/l.) Although the number of parts in the 



involucre may well be more important than the number of flowers it incloses as Choisy remarks, 

 ' yet the principal character of Allionia is in the fruit, 



2. ABRONIE^E- Involucrum polyphyllum, perfectum, e bracteis discretis 5-15, capitulum 

 multiflorum fulcrans. Stigma capitatum vel lineari-clavatum. 



Nyctaginia, Choisy. Perigonium tubuloso-infundibuliforme, lobis integris. Genitalia longe 



exserta, Anthocarplum nuciforme Mirabilis, ecostatum. 



Abroxia, Juss, Perigonium hypocraterimorphum, lobis obcordatis. Genitalia inclusa. An- 

 * throcarpium perfectum 5-peterum. Embryo abortu monocotyledoneus. 



3. ACLEISANTHE^. Involucrum imperfectum, e bracteolis 2-3 parvis ad flores singulos, 



vel nullum. Stigma If^ve, peltatum seu pileiforme. 

 SelinocabpuSj Gray. Anthocarpium 

 AcLEisANTHES, Gray. Anthocarpium 



') 



I Pentaceophys, Gray. Anthocarpium cylindricum, 5-costatum, costis apice glandula Siepius 



I - tumida instructis. 



i '» Bcerhaavia. Anthocarpium nunc 5-costatum vel angulatum, nunc 10-costatum. Flores 



si^pius paniculati vel racemosi. 



MIRABILIS, Linn. 



!• Nyctage, Royen. Involucrum uniflorum. Perigonium longe tubulosum vel infundibuli- 



I forme. Flores ampli. 



M. Jalapa & M. LOXGIFLOKA, Liun.^ cum variis, 



2, QuAMOCLiDiON, CTioisy. Fere pr^ecedentis, sed involucrum 3-12-florum. 

 M. TPtiFLoRAj Benth. PI. Hartiv. Quamoclidion nyctagineum, Choisy. 

 M. MTJLTiFLOEA. Oxybaphus multiflorus, Torr. Quamoclidion multiflorum, Torr.^ etc. 



3. OxYBAPHOiDES. luvolucrum 1-3-florum. Perigonium e tubo brevi late infundibuliforme. 

 Flores pro genere parvi, 



M. OXYEAPHOIDES* Quamoclidiou oxybaphoides, Gray in 

 volucrum triflorum, 5-partitum, fructiferum tenui-membranaceum. Stam. 3. 



M, Calieoknica. Oxybaphus Ifevis, Benth. Bot. Voy. Sulph. p. 44? 0. glabrifolius, var. 

 crassifolius, Choisy in DC. Prodr. 13, p. 431. 0, glabrifolius, Torr, Bot. Whipp. Rep. p. 131, 

 non Vahl. Aut glabra, aut viscoso-villosa, foliis parvis subcordatis. Involucrum uniflorum, 



SiU. Jour. C 



5-fidum. Stam. plerumque 5. (Th 



Oxybaphus ovatus, which is said to have 



*' semen obovatum laeve/' for it is also said to have tbe involucrum '^'crescentes in membranam 

 ^enoso-reticulatam patentissimam/' R. & P.) 



OXYBAPHUS. 



The two sections founded on the number of the flowers in the involucre are of small value in 

 this genus. Betero's No. 495, referred by Choisy to 0. ovatus, and probably (with Calyxhy- 

 menia ovata, R. & P.?) only a form of 0. viscosus, exhibits two if not three flowers in the same 

 involucre. No. 511 of Dr. Gregg's Mexicr i Collection is in the same case, and is pretty clearly 

 0. viscosus notwithstanding. And I think that Wright's No. 605, with glabrous and papillose- 



