BOTANY. 117 



Pedicularis palustris, Lousewort (Europe) {pi. 60, 61, fig. 15) ; a, uppet 

 part of the plant ; 6, root ; c, lower lip of the corolla ; c/, section of the corolla 

 with the stamens ; e, pistil. 



Veronica officinalis, Speedwell (central Europe) {j)l. 60, 61, ^o-. 14). 



Order 87. Orobanche.e, the Broom-rape Family. Calyx divided, per- 

 sistent, inferior. Corolla inonopetalous, hypogynous, irregular, usually bilabi- 

 ate, persistent ; aestivation imbricated. Stamens four, didynamous. Disk 

 ficshy. Ovary free, one-celled, composed of two carpels whicli stand fore and 

 aft, with two or more parietal placentas ; ovules 00 ; style one ; stigma two- 

 lobed, each of the lobes belong half to oacli c;n-})C'l. Fruit capsular, inclosed 

 within the withered curolla, one-celled, two-valved. Seeds 00, minute ; em- 

 bryo very minute, at one end of flesliy albumen. Herbaceous parasitical 

 plants, having scales in place of leaves. They are natives of Europe, more 

 especially the southern parts, and of Asia, North America, and the Cape of 

 Good Hope. Lindley gives twelve genera, and 116 species. Examples : 

 Orobanche, Lathrjsa, Epiphegus, Conopholis, Aphyllon. 



The plants or' this order are generally destitute of green foliage, Avith lurid 

 yellowish or brownish scales instead. They are mostly parasitic on the roots 

 of various other species. 



Lathraea squamaria (Europe) {pi. 60, Q)\.,fig. '^'S):, upper and lower part of 

 the plant ; a and b, calyx ; c, corolla ; d, antliers ; e, pistil ; /. pericarp, 

 itc. 



Ord'-.r 88. 'Solanace^, the Nightshade Faraih". Calyx inferior, five-, 

 rarely four-partite, persistent. Corolla inonopetalous. hypogynous, .with the 

 11 111 b five-, rarely four-cleft, regular, or somewhat unequal, deciduous ; aestiva- 

 tion plicate or imbricated. Stamens inserted on the corolla, equal in number 

 to the c')roHine sehraeuts, and alternate with them ; anthers with longitu- 

 dinnl or porous dehiscence. Ovar_y usually two-celled, sometimes four-, 

 five-, or many-celled ; ovules indefinite ; style continuous ; stigma simple. 

 Fruit with two, four, or more cells, rarely unilocular; either a capsule 

 dehiscing in a septicidal or circumscissile manner, and having a double 

 dissepiment parallel to the valves, or a lierry with the placentas adhering 

 to the dissepiment, or a nuculanium with five or more nucules. Seeds 00 ; 

 embryo straight or curved, often excentric, lying in fleshy albumen ; radi- 

 cle next the hilum. Herbs or shrubs, Avith alternate leaves. Natives 

 of most parts of the v.orld, but abundant in the tropics. The order 

 has been divided into two sections, which are not, however, well de- 

 fined. 



^1. Curvembrijea'. 



(Embryo curved, with semi-cylindrical cotyledons.) 



Tribe 1. Nicotianm. Capsule bilocular, separating into two valves by septi- 

 cidal dehiscence. Examples : Nicotiana, Petunia. 



Tribe. 2. Dalurccc. Capsule or berry incompletely four-locular. Example : 

 Datura. 



Tribe 8. Hi/osci/a niece. Capsule bilocular, opening by a circular slit. 

 Example : Hyoscyamus. 



U1 



