86 VASCULAR PLANTS. 



1. Rhus, L- 



Polygamous. Calyx 5-parted, persistent. 

 Stamens 5. Ovary 1, 1-locular, 1-ovulate; 

 styles 3. Fruit, a dry drupe. £. 



Fami.y LII. Juglandeae. {Of doubtful affinity.) 



Flowers diclinous. & : amentaceous; perigo- 

 nium adnate to the bract, and imbricate; petals 

 3, or its multiple. ? : aggregate or racemose; 

 perianth connate with the imperfectly 2 — 4-loc- 

 ular. 1-ovulate ovary. Fruit a pyrenous drupe. 

 Leaves imparipinnate ; stipules 0. 



1. Juglans, L- 



$ : stamens more than 6. 9 : few, terminal; 

 calyx 4-partecl; petals 4; styles 2. ^ . 



ORDER XVII. SAPINDALES. 



Parts of the andrcecium not symmetrical. Ca- 

 lyx free, imbricate in aestivation. Petals insert- 

 ed into a hypogynous disk. Stamens as many 

 as the petals, or their multiple. Carpidia 3, 

 sometimes 2, connate into an ovary. Ovules 

 of definite number. 



Family liii. Polygalaceae . 



Flowers irregular, ofteu imitating PapUion- 

 acece. Sepals 5, the two lateral petaloid (wings). 

 Petals 5, sometimes 3, connate with the stami- 

 neal tube; anterior petal concave (carina). 



