BOTANY. 179 
inflexis, in centro linea duplici tuberculorum. Involucrum tripartitum, triflorum, fructiferum 
haud scarioro-explanatum. ы 
ALLIONIA, Linn. pro parte, Chois. (This genus should: by right, have borne the name of 
Wedelia, Гў. , and Oxybaphus that of Allionia, Leal.) 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. ABRONIEJE. Involucrum polyphyllum, perfectum, e bracteis discretis 5-15, capitulum 
multiflorum fulerans, Stigma capitatum vel lineari-clavatum. 
NycrAGINIA, Choisy. Perigonium tubuloso-infundibuliforme, lobis integris, Genitalia longe ` 
exserta. Anthocarpium nuciforme Mirabilis, ecostatum. , 
ABRONIA, Juss. Perigonium hypocraterimorphum, lobis obcordatis. Genitalia inclusa. An- 
shfovarpiom perfectum 5- pfterum. Embryo abortu monocotyledoneus. Я 
3. ACLEISANTHEÆ. Involucrum imperfectum, e bracteolis 2-3 parvis ad flores singulos, 
vel nullum. Stigma leve, peltatum seu pileiforme. | ud 
SELINOCARPUS, Gray. Anthocarpium alatum, alis 5 vel abortu 3 aveniis. 
ACLEISANTHES, Gray. Anthocarpium et perigonium (longe tubulosum) Mirabilis. 
PzrwTAcRoPHYS, Gray. Anthocarpium cylindricum, 5-costatum, costis apice glandula sepius 
tumida instructis. 
BaRHAAVIA.  Anthocarpium nunc 5-costatum vel angulatum, nunc 10-costatum. Flores 
sæpius paniculati vel racemosi. 
MIRABILIS, Linn. 
$1. NvcraaE, Royen. Involucrum uniflorum. Perigonium longe tubulosum vel infundibuli- | 
forme. Flores ampli. 
М. JALAPA & M. LONGIFLORA, Linn., cum variis. 
$ 2. QuaMocLIDION, Choisy. Fere preecedentis, sed involucrum 3-12-florum. 
M. TRIFLORA, Benth. Pl. Hartw. Quamoclidion nyctagineum, Choisy 
M. MULTIFLORA. Oxybaphus multiflorus, Torr. Quamoclidion multiflorum, Torr., etc. 
$3. OXYBAPHOIDES. Involucrum 1-3-florum. Perigonium e tubo brevi late infundibuliforme. 
їнийг, genere parvi. 
M. OXYBAPHOIDES. Quamoclidion oxybaphoides, Gray in Sill. Jour. (ser. 2,) 15, p. 320. In- 
volucrum triflorum, 5-partitum, fructiferum tenui-membranaceum. Stam. 3. 
M. CALIFORNICA. Oxybaphus levis, Benth. Bot. Voy. Sulph. р. 44? 0. glabrifolius, var. 
crassifolius, Choisy in DO. Prodr. 13; p. 431. О. glabrifolius, Torr. Bot. Whipp. Кер. p. 131, 
non Vahl. Aut glabra, aut viscoso-villosa, folis parvis subcordatis. Involucrum uniflorum, 
5-fidum, Stam. plerumque 5. (This cannot be Oxybaphus ovatus, which ig said to have 
“semen obovatum leve,’’ for it is also said to have the involucrum ©“ crescentes in membranam 
venoso-reticulatam patentissimam." AB. & P.) 7^4 42 ' 
OXYBAPHUS. x 
The 188 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 O. ovatus, and probably (with Calyxhy- 
menia ovata, R. £ P.?) only a form of O. viscosus, exhibits two if not three flowers in the same 
involucre. No. 511 of Dr. Gregg’s Мехїсс 1 Collection i is in the same case, and is pretty clearly 
O. viscosus notwithstanding. And I think that Wright’ 8 No. 605, with Dp and depu 
