18 ANALYTICAL KEY. 



Stamens borne on the tube of the corolla and fewer than its lobes. PAGB 



viz. 

 One to three : ovary sometimes 3-celled, but the fruit only 



1-celled and 1-seeded . . . VALERIAN F. 218 

 Four, two of them shorter: ovary 3-celled, but two cells 



empty : fruit 1-seeded (Linnsea) HONEYSUCKLE F. 208 

 Four, one longer and one shorter pair : ovary 1-celled : fruit 



very many-seeded .... GESNERIA F. 334 

 Stamens borne on the corolla, twice or more than twice the num- 

 ber of its lobes, more or less monadelphous or 5-adelphous : 



leaves alternate STORAX F. 277 



Stamens borne on the tube of the corolla, just as many as its 

 lobes : leaves opposite, whorled, crowded, or radical 



With stipules entire MADDER F. 214 



Without true stipules 



Ovary 1-celled, 1-seeded : flowers in an involucrate head, 



TEASEL F. 219 

 Ova. ,y 2-o-celled 



2-celled, the fruit twin : leaves entire, in whorls, 



MADDER F. 214 



2-5-celled: flowers not in a proper head; leaves 

 chiefly opposite, often toothed or compound, 



HONEYSUCKLE F. 208 

 3-celled: leaves mossy-crowded, or radical, 



DIAPENSIA F. 271 



* * Calyx free from the ovary, i.e. inferior, or ovary superior 

 - Corolla more or less irregular 



Stamens 10 or 5, distinct : anthers opening by a hole at the apex of 



each cell: ovary 5-elled HEATH F. 262 



Stamens 10, diadelphous or monadelphous : anthers opening length- 

 wise : ovary 1-celled PULSE F. 116 



Stamens 8 or 6, diadelphous or monadelphous : anthers opening by a 



hole at the apex: ovary 2-celled. . . POLYGALA F. 114 

 Stamens 6, diadelphous: the middle anther of each set 2-celled, the 



other two l-elled: ovary 1-celled . . FUMITORY F. 57 

 Stamens (with anthers) 5 



Ovary deeply 4-lobed, making 4 seed-like fruits or pieces, 



(Echium, etc.) BORAGE F. 301 

 Ovary not divided : fruit (mostly a pod) many-seeded 



Calyx urn-shaped, inclosing the pod, which is 2-celled, the 

 top separating as a lid, 



(Hyoscyamus) NIGHTSHADE F. 311 

 Calyx 5-cleft or 5-parted : pod 2-valved, 



(Verbascum) FIGWORT F. 318 

 Stamens (with anthers) 4 or 2 



Ovary 1-celled with a central placenta, bearing several or many 



seeds: stamens 2 .... BLADDER WORT F. 333 

 Ovary l-celled with 2 or 4 parietal placentse : stamens 4, didyn- 



amous 

 Leafless plants, brownish or yellowish, never green, with 



scales in place of foliage . . BROOM RAPE F. 332 

 Leafy plants, with ordinary foliage 



Not climbing: seeds minute, wingless GESXERIA F. 334 

 Climbing: seeds winged . . . BIGNONIA F. 335 

 Ovary 2-celled, many-ovuled : pod containing very many flat and 



winged seeds : woody climbers or trees BIGNONIA F. 335 

 Ovary 4-celled (but stigmas only 2) : many flat and wingless large 



seeds, filled by the embryo : herbs . . SESAMUM F. 337 

 Ovary 2-celled, many-seeded or few-seeded, the placenta in the 



axis 



Seeds few or several in each cell, flat and borne on hook-like 

 projections of the placentae, or globular on a cartilagi- 

 nous ring: no albumen . . . ACANTHUS F. 337 

 Seeds man?/ or few in each cell, not borne on hooks, &c. : 



embryo in albumen 

 Corolla 2-lipped or very irregular , 



FIGWORT F. 318 (Also SCHIZANTHUS, 318) 

 Corolla regular or very nearly so . NIGHTSHADE F. 311 



