ANALYTICAL KEY. 19 



Ovary 2-4 celled, rarely 1-celled, with only a single ovule or seed page 



in each cell, not lobed VERVAIN F. 339 



Ovary 4-parted, making 4 seed-like pieces or nutlets around the 



single style MINT F. 312 



-Corolla regular. 

 Stamens more numerous than the divisions of the corolla. (Here, 

 from the cohesion of the bases of the petals, some of the follow- 

 ing, ranked as polypetalous, may be sought) — 

 Leaves twice pinnate, or else phyllodia: ovary one, simple, 



1-celled MIMOSA SUBF. 122 



Leaves simply compound, of 3 leaflets : ovary 5-celled : stamens 



10, monadelphous at the base (Oxalis) GERANIUM F. 93 

 Leaves simple, in one compound, fleshy, very thick: anthers 2- 



celled: pistils as many as lobes of the corolla ORPINE F. 170 

 Leaves simple or lobed or divided : stamens indefinite, monadel- 

 phous : anthers kidney-shaped, 1-celled . MALLOW F. 85 

 Leaves simple, not lobed or divided, nor fleshy : anthers 2-celled : 

 pistil compound, more than 1-celled — 

 Anthers commonly opening at the end : stamens on the re- 

 ceptacle, free or nearly free from the corolla, 



HEATH F. 262 

 Anthers opening lengthwise ; stamens on the corolla or 

 mainly so : trees or shrubs — 

 Flowers polygamous or dioecious: stamens separate: 



styles 4, each 2-lobed . . . EBONY F. 277 

 Flowers perfect : stamens more or less monadelphous or 

 6-clustered — 

 Base of the calyx coherent with the base of the ovary, 



STORAX F. 277 

 Calyx wholly free from the ovary CAMELLIA F. 84 

 Stamens fewer than the lobes or divisions of the corolla — 

 Four, mostly didynamous — 



Ovary 2-celled, with usually many ovules in each cell, 



FIGWORT F. 318 

 Ovary 2-celled, with few or several ovules in each cell : 



seeds flat on hooks . . . ACANTHUS F. 337 

 Ovary 2-4-celled, with a single ovule in each cell, 



VERVAIN F. 339 

 Two only with anthers, and two abortive ones : ovary deeply 



4-lobed (Lycopus) MINT F. 342 



Two, exserted : herbs, or some exotic species are low shrubby 



plants .... (Veronica) FIGWORT F. 318 

 Two or three : shrubs, trees, or woody twiners OLIVE F. 279 

 Stamens (with anthers) as many as the lobes or divisions of the 

 corolla and opposite them — 

 Styles or stigmas 5 : ovary 1-celled : ovule and seed solitary, 



LEADWORT F. 271 

 Style and stigma only one — 



Herbs : ovary 1-celled with a central placenta : seeds few or 



many PRIMROSE F. 273 



Trees or shrubs: ovary 5-celled; fruit 1-few-seeded : petal- 

 like scales alternate with the anthers S APODILL A F. 276 

 Stamens (with anthers) as many as the lobes or parts of the corolla 

 and alternate with them — 

 Pistil one and simple, with one parietal placenta : fruit a legume 



orloment: leaves twice pinnate . . MIMOSA SUBF. 122 

 Pistils as many as the lobes of the corolla, separate : fleshy plants, 



ORPINE F. 170 

 Pistils several or many as to the ovary, or ovaries deeply lobed, 

 the lobes or pieces making so many separate little 1-seeded 

 fruits or akenes, but all around one common style — 

 Akenes or lobes numerous in a heap or several in a circle, 



(Nolana) CONVOLVULUS F. 306 

 Akenes or lobes only 4 around the base of the common style — 

 Aromatic plants, with opposite leaves, 



(Mentha, etc.) MINT F. 342 

 Not aromatic, with alternate and commonly rough leaves, 



BORAGE F. 301 



