Octandria Monogynia.

Generic Character.

Cal. 4-fidus. Petala 4. Caps. cylindrica infera. Sem. nuda.

Specific Character and Synonyms.

ŒNOTHERA tetraptera foliis lanceolatis, basi pinnatifido-dentatis, capsulis pedicellatis obovatis quadrialatis. Linn. Sp. Pl. edit. Wildenou.

ŒNOTHERA foliis alternis subpinnatis crispis, flore mutabili fructû tetraptero. Cavanill. Icon. t. 3. p. 40. tab. 279.

Of this genus we have already figured six different species; this is another newly discovered one, which, like most of its kind, displays its beauties chiefly in the night. It is the only one, as far as we yet know, that has white blossoms; these, when first expanded, are beautifully so, but in the morning they change to a purple colour, fade, and their place is supplied by a fresh succession. In this remarkable change of colour, it bears some affinity to the Œnothera anomala, which may be considered as strengthening our opinion that the latter plant belongs to this genus rather than to that of Gaura. The Œnothera tetraptera is a native of Mexico, its duration as yet not certainly ascertained, but may be treated as a tender annual; and such plants as do not flower the first year, may be preserved under glasses through the winter. It was raised from seeds sent by Mr. Donn, from Cambridge; but was probably first introduced into this country from seeds sent to the Marchioness of Bute, by Prof. Ortega, of Madrid.

INDEX. In which the Latin Names of the Plants contained in the Thirteenth Volume are alphabetically arranged. Pl. [457]Alöe plicatilis. [455]Alöe retusa. [453]Amaryllis Reginæ. [462]Anthemis Pyrethrum. [441]Antholyza Merianella. [458]Aristea cyanea. [433]Azalea pontica. [451]Blakea trinervia. [466]Calycanthus præcox. [444]Canarina Campanula. [454]Canna indica. [452]Cardamine trifolia. [459]Convolvulus Cneorum. [445]Coronilla Emerus. [449]Dillenia speciosa. [456]Diosma serratifolia. [467]Dracocephalum virginianum. [463]Epidendrum ciliare. [440]Erica albens. [447]Erica empetrifolia. [443]Erica physodes. [442]Genista linifolia. [450]Gladiolus Watsonius. [435]Gnaphalium ericoides. [436]Hibiscus præmorsus. [437]Hydrangea Arborescens. [438]Hydrangea Hortensis. [461]Jasminum fruticans. [439]Illicium floridanum. [465]Indigofera angustifolia. [460]Maurandya semperflorens. [448]Mesembryanthemum micans. [468]Œnothera tetraptera. [434]Oxybaphus viscosus. [446]Psoralea bracteata. [464]Sisyrinchium gramineum. INDEX. In which the English Names of the Plants contained in the Thirteenth Volume are alphabetically arranged. Pl. [466]Allspice, Japan. [455]Aloe, cushion. [457]Aloe, fan. [441]Antholyza, dwarf. [458]Aristea, grass-leaved. [433]Azalea, yellow. [444]Bell-flower, canary. [459]Bindweed, silvery-leaved. [451]Blakea, three-ribbed. [442]Broom, flax-leaved. [450]Corn-Flag, Watson's. [452]Cuckow-Flower, three-leav'd. [449]Dillenia, shewy. [456]Diosma, serrated or saw-leaved. [467]Dragon's Head, virginian. [463]Epidendrum, fringed. [448]Fig-Marygold, glittering. [435]Gnaphalium or Everlasting, heath-leaved. [447]Heath, crowberry-leaved. [443]Heath, sticky-flowered. [440]Heath, pallid. [436]Hibiscus, bitten-leaved. [438]Hydrangea, garden. [437]Hydrangea, shrubby. [461]Jasmine, yellow. [439]Illicium, red-flowered or Aniseed tree. [454]Indian Reed or Shot, common. [465]Indigo, narrow-leaved. [453]Lily, Mexican. [460]Maurandya or Bastard Foxglove, climbing. [468]Œnothera, white-flowered. [462]Pellitory of Spain. [446]Psoralea, oval-spiked. [445]Senna, scorpion. [464]Sisyrinchium, grass-leaved. [434]Umbrella Wort, viscid.
Pl.
[457]Alöe plicatilis.
[455]Alöe retusa.
[453]Amaryllis Reginæ.
[462]Anthemis Pyrethrum.
[441]Antholyza Merianella.
[458]Aristea cyanea.
[433]Azalea pontica.
[451]Blakea trinervia.
[466]Calycanthus præcox.
[444]Canarina Campanula.
[454]Canna indica.
[452]Cardamine trifolia.
[459]Convolvulus Cneorum.
[445]Coronilla Emerus.
[449]Dillenia speciosa.
[456]Diosma serratifolia.
[467]Dracocephalum virginianum.
[463]Epidendrum ciliare.
[440]Erica albens.
[447]Erica empetrifolia.
[443]Erica physodes.
[442]Genista linifolia.
[450]Gladiolus Watsonius.
[435]Gnaphalium ericoides.
[436]Hibiscus præmorsus.
[437]Hydrangea Arborescens.
[438]Hydrangea Hortensis.
[461]Jasminum fruticans.
[439]Illicium floridanum.
[465]Indigofera angustifolia.
[460]Maurandya semperflorens.
[448]Mesembryanthemum micans.
[468]Œnothera tetraptera.
[434]Oxybaphus viscosus.
[446]Psoralea bracteata.
[464]Sisyrinchium gramineum.
Pl.
[466]Allspice, Japan.
[455]Aloe, cushion.
[457]Aloe, fan.
[441]Antholyza, dwarf.
[458]Aristea, grass-leaved.
[433]Azalea, yellow.
[444]Bell-flower, canary.
[459]Bindweed, silvery-leaved.
[451]Blakea, three-ribbed.
[442]Broom, flax-leaved.
[450]Corn-Flag, Watson's.
[452]Cuckow-Flower, three-leav'd.
[449]Dillenia, shewy.
[456]Diosma, serrated or saw-leaved.
[467]Dragon's Head, virginian.
[463]Epidendrum, fringed.
[448]Fig-Marygold, glittering.
[435]Gnaphalium or Everlasting, heath-leaved.
[447]Heath, crowberry-leaved.
[443]Heath, sticky-flowered.
[440]Heath, pallid.
[436]Hibiscus, bitten-leaved.
[438]Hydrangea, garden.
[437]Hydrangea, shrubby.
[461]Jasmine, yellow.
[439]Illicium, red-flowered or Aniseed tree.
[454]Indian Reed or Shot, common.
[465]Indigo, narrow-leaved.
[453]Lily, Mexican.
[460]Maurandya or Bastard Foxglove, climbing.
[468]Œnothera, white-flowered.
[462]Pellitory of Spain.
[446]Psoralea, oval-spiked.
[445]Senna, scorpion.
[464]Sisyrinchium, grass-leaved.
[434]Umbrella Wort, viscid.