608 



SYSTEMATIC BOTAjJ^Y. 



Natural Order 167. Nolanace^. — The Nolana Order. — 

 Character. — Herbs or shrubs. Leaves alternate, exstipulate. 

 Inflorescence straight. Calyx 5-partite, persistent, with a valvate 

 aestivation. Corolla regular, with a plaited aestivation. Stamens 

 5, opposite to the lobes of the calyx. Ovary composed of from 

 5—20 carpels, either distinct or more or less combined into 

 several bundles ; style on a fleshy disk, simple ; stigma simple. 

 Fruit composed of 5 or more separate aciisenia, or more or less 

 combined ; enclosed in the persistent calyx. Seed with a little 

 albumen ; embryo curved ; radicle inferior. 



Distribution, S^'c. — Natives exclusively of South America, es- 

 pecially of Chili. Examples of the Genera: — Nolana, Alona. 

 There are about 36 species. 



Properties and Uses. — Unknown. 



Natural Order 168. Labtat.e or Lamiace^. — The Labiate 

 Order {figs. 993-998). — Character. — Herbs {fig. 367) or 

 shrubby plants, with usually square stems. Leaves opposite 

 {fig. 367), commonly strong-scented, exstipulate. Flowers gene- 



Fig. 993. 



Fig. 994. 



^^^^^^^ 



Fig. 993. Diagram of tlie flower of the White Dead-nettle (Lamium album). 

 Fig. 994. Flower of the common Bugle (Ajuga reptans). 



rally in axillary cymes, which are arranged in a somewhat 

 whorled manner, so as to form what are called verticillasters {fig. 

 367). Calyx persistent, tubular, 5 or 10-toothed, regular; or ir- 

 regular and bilabiate {fig. 445), with 3 — 10 divisions, the odd tooth 

 or division always posterior {fig. 993). Corolla {figs. 468-471, 

 994 and 995) more or less bilabiate, with the upper lip undi- 

 vided (fig. 468) or bifid {figs. 469 and 470), usually more or 

 less arched over the lower lip {fig. 468), or sometimes nearly 

 suppressed {fig. 994) ; the lower lip 3-lobed, with the odd 

 lobe anterior {fig. 993). Stamens usually 4, didynamous {figs. 

 595 and 997), or rarely 2 by abortion {fig. 996) ; anthers 2-celled, 

 or 1 -celled by abortion ; the filament or connective sometimes 

 forked, each branch then bearing a perfect cell, or the cell on one 

 side obsolete or sterile {fig. 503). Ovary deeply 4-lobed {figs. 

 595 and 998), seated on a fleshy disk, with 1 erect ovule in 

 each lobe; style 1, basilar {figs. 595 and 998); 5%^na forked 

 {fig. 998). Fruit composed of from 1 — 4 achsenia, enclosed by 



