SYNOPSIS OF THE ORDERS. 11 



•J- •»- Anthers connate into a tube. 



55. Compositae (p. 230). Stamens as many as the valvate corolla-lobes. 

 Ovary with a solitary erect ovule, becoming an achene. Albumen none. 

 Calyx-limb reduced to a pappus or none. Flowers in involucrate heads. 



* 2. Ovary inferior (or superior in most Ericaceae and in Diapensiacea;) ; sta- 



mens free from the corolla or nearly so (adnate in some Diapeusiaceic), 

 as many as the lobes and alternate with them, or twice as many ; leaves 

 alternate (opposite in some Ericacese) ; style 1. 



•»- Juice milky ; capsule 2 - 5-celled, many-seeded ; herbs. 



56. Lobeliaceae (p. 30.5). Corolla irregular, 5-lobed. Stamens united, at 

 least by the anthers. Capsule 2-celled or with two placentte. 



57 Campanulaceae (p. 307). Corolla regular, 5-lobed, valvate. Stamens 

 usually distinct. Capsule 2 - several-celled. 



-I- +- Juice not milky nor acrid; capsule 3-10-celled. 



58. Ericaceae (p. 309). Flowers mostly regular, 4-5-merous. Stamens 



distinct, more usually twice as many as the corolla-lobes or petals. Ovary 

 inferior or superior. Herbs or shrubs. 



59. Diapensiaceae (p. 326). Flowers regular. Stamens 5, on the corolla, 

 or mouadelphous with 5 petaloid .staminodia. Ovary superior, 3-celled. 



* 3. Ovary superior; stamens as many as the corolla-lobes and opposite them. 



60. Plumb aginaceae (p. 327). Stamens 5, on tlie base of the petals. 



Styles 5. Fruit an achene or 1-seeded utricle. Herbs ; leaves radical. 



61. Primulaceae (p. 328). Stamens 4-8, perigynous. Style 1. Fruit a 



capsule with several seeds on a central placenta. Herbs ; leaves radical 

 or opposite or alternate. 

 62 Sapotacese (p. 332). Flowers small, 4-5-merous. Style 1. Ovary 

 few - several-celled ; fruit fleshy, bearing a single bony-coated seed. 

 Shrubs or trees, with milky juice and alternate entire leaves. 



* 4. Ovary superior or more or less adnate to the calyx, few - several-celled, 



the cells 1-ovuled; stamens twice as many as the corolla-lobes or more; 

 trees or shrubs, with alternate leaves. 



63. Ebenaceae (p. 333). Flowers dioecious or polygamous Stamens on 

 the corolla. Ovary superior. Styles distinct. Fruit fleshy, few-seeded. 



64. Styracaceae (p.333). Flowers perfect. Stamens subhypogvnous. Ovary 

 more or less inferior. Style 1. Fruit dry or nearly so, 1 -4-seeded. 



* 5. Ovary superior, of two carpels (sometimes by division apparently 4-car- 



pellary, sometimes of 3 - 5 in Polemoniaceas, Convolvulaceae, and Sola- 

 naceas) ; stamens on the corolla (except in apetalous Oleacese), alternate 

 with its lobes, as many or fewer. 



H- Corolla not scarious and nerveless. 

 ++ Corolla none, or regular and 4-cleft or -parted, the stamens fewer than its 



lobes ; style 1 ; seeds 1-3. 



65. Oleaceae (p. 335). Trees or shrubs, with opposite and pinnate or simple 

 leaves. Flowers perfect or polygamo-dioecious. Stamens mostly 2, alter 

 nate with the usually 2-ovuled carpels. 



