(78) 



4. Garrya. — Flowers amentaceous. Bracts 

 decussate, connate in pairs. S flowers 

 4-parted. Perigonium of $ flowers ru- 

 dimentary. Styles 2. Fruit a berry. 

 Tree. 



IV. Pentandria. 



1. Rhus. — Calyx 5-parted, persistent. Pet- 

 als 5. Stamens alternating with the 

 petals. Ovary 1-celled, 1-seeded. Styles 

 3. Fruit a drupe. Tree. Shrub. 



2. Ptelea. — Calyx 5-parted, petals 5. Sta- 

 mens alternating with the petals. Style 

 1. Fruit a 2-seeded samara. Tree. 



3. Rhamnus. — Calyx 4-cleft. Petals 0. 



Stamens alternating with the partitions 

 of the calyx. Fruit 2-4-celled, 2-4- 

 seeded. Shrub. 



4. Vitis. — Calyx obsolete. Petals inserted 

 on a disc, coherent at their apex, and 

 deciduous at their base. Fruit baccate. 



5. Negundo. — Perigonium depauperate, 5- 

 cleft. Ovary 2-lobed, 2-celled. Fruit 

 a 2-seeded samara. Tree. 



6. Juniperus. — $ flowers amentaceous. 

 Stamens adnate to the base of a scale. 

 $ flowers amentaceous. Ovules naked, 2 

 adnate to the base of each bract. Fruit 

 a galbulus. 



