ANALYTICAL KEY. xiii 



Ovary 4-lobecl, forming 4 separate or sejjarable seed- 

 like nutlets. Borraginace;e, 53 



Ovary siugle aud entire. 



Style 3-cleft at ni)ex : capsule 3-oelled : corolla 



convolute Polemomack.*:, 51 



Styles or stigmas 2 or 1 . 



Ovules and seeds at most 4, large, witli large euil^ryo and 



little or no albumen : peduncles axillary. CoNvoLVULACEiE, 54 

 Ovules few or numerous : embryo small, in albumen. 

 Leaves all opposite or whorled and entire : capsule 



1-celled : corolla convolute. . . Glntia.vace^, .'O 



Leaves various, mainly alternate. 



Styles 2 (or 1 aud 2-cleft) : capsule 1 to 2- 



celled IIVDROPIIYLLACE.fi, 52 



Style 1 : stigma usually 1 : capsule or berry 



2-celled, rarely more SoLAN'ACF.fi, 55 



See also Limosella, in . . . Scroi'hulakiack.e, 56 



4- •*- Corolla irregular: stamens (with anthers) 4 and didi/namous, or 2: sti/le 1. 

 Ovary and capsule 2-celled : seeds small, mostly indefi- 

 nite SCROPIIULARIACE.E, 56 



Ovary and capsule 1-celled, with many-seeded placentae 



in the axis Lentibulariace.e, 58 



Ovary 4-parted, in fruit as many seed-like nutlets. . . Lariat.*, 60 



Ovary undivided : fruit splitting into 2 or 4 one-seeded 



nutlets. Verbexacea:, 59 



Division III. APETAL^. Corolla (and sometimes calyx) wanting. 

 A. Flowers not in aments, 



1, Ovary andjruit superior j l-celled and l-ovuled, or ca?7W.s distinct if more 



than one. 



Stipules sheathing the stem at the nodes. . . . roLvooNACE^, 66 

 Stipules not sheathing the stem or none. 

 Shrubs or trees. 

 Leaves alternate : flowers perfect : fruit a tailed akene. 



Ccrcocarpus, in RosACE.e, 26 

 Leaves alternate : flowers unisexual ; fruit a utricle. Chexopodi ackje, 65 

 Leaves opposite. 



Fruit an akene : leaves small and narrow. Coleogyne, in Kosaceje, 26 

 Fruit a simple samara : leaves pinnate. Fraxinus, in Oleacej:, 47 



Herbaceous, or sometimes woody at base. 

 Fruit a utricle : seed lenticular: embryo annular or spiral. 

 Flowers with scarious persistent sepals and bracts : no 



stipules. AMARANTACL.E, 64 



