SYNOPTICAL KEY. 277 



M- Seeds albuminous. 



68. Rhinanthaceae. Herbs or shrubs with alternate or opposite leaves. 

 Corolla imbricate in the bud. Capsule 2-celled, with central pla- 

 centae, few-many-seeded. 



69. Orobanchaeeae. Parasitic herbs, without green herbage: scales al- 

 ternate; capsule 1-celled, 2-valved, many-seeded, with 2-4 parietal 

 placentae. 



* ** Seeds without albumen. 



70. Piuguiculaceae. Herbs with capillary dissected or entire leaves. 



Stamens 2; anthers 1-celled. Capsule 1-celled, many-seeded, with 

 central placentae. 



- t- Fruit of 2 or 4 distinct or united 1-seeded nutlets. 



71. Labiatse. Mostly aromatic herbs or shrubs with square stems 

 and opposite, simple leaves. Stamens 4 or 2. Uvary 4-lobed around 

 the 2-cleft style, forming as many distinct nutlets. 



72. Verbenaceae. Herbs or shrubs with opposite or whorled leaves. 

 Stamens 4. Ovary not lobed, 2-4-celled at maturity, splitting into 4 

 1-seeded nutlets. 



4- - - Fruit a 2-celled, circumscissile capsule. 



73. Plautagluaceae. Acaulescent herbs Flowers 4-merous; corolla 

 scarious. Stamens 2 or 4. Style 1. Fruit a 2-celled, 2-few-seeded 

 capsule. 



ORDER XL VII. VIBURNACE^E, Dumort. Coum. Bot. 56. 



CAPRIPOLIACEM, Vent. Tabl. ii, 593. 



Shrubs or herbs with opposite leaves normally without sti- 

 pules and regular or irregular hermaphrodite flowers. Calyx- 

 tube adnate to the 2-5-celled ovary. Stamens as many as lobes 

 of the corolla (in Linnaea one fewer) and alternate with them, 

 inserted on its tube or base. Embryo small, in the axis of 

 fleshy albumen. Corolla-lobes generally imbricated in the 

 bud. Ovules anatropous, when solitary, suspended and resup- 

 inate; the rhaphe dorsal; seed-coat adherent to the albumen. 



TRIBE i. Corolla rotate or open campanulate, regular style 

 short and 2-5-parted, or as many sessile stigmas. 



1. Viburnum. Shrubs with simple or merely lobed leaves : nutlet of 

 the berry-like drupe only 1, flattened. 



2. Sa mime us. Shrubs or shrubby trees with pinnate leaves : nutlets of 

 the berry-like fruit, 2-5. 



TRIBE n. Corolla from campanulate J-o tubular ; often irreg- 

 ular; styles elongated; stigma capitate. 



3. Linnsea. Creeping undershrubs with simple leaves: corolla cam- 

 panulate, 5-lobed, obscurely irregular: stamens 4, unequal; ovary 3- 



