338 Class XXII. Order XIII. 



Class XXII. DICECIA. Barren and fer- 



tile flowers on different plants. 



Order II. DMNDRM. Two stamens. 



2. SALIX. Calyx scale of an ament ; corol- 

 la none. In the barren flowers, from one to five 

 stamens, with a nectariferous gland at the base. 

 In the fertile flowers, two stigmas ; capsule one 

 celled, two valved ; seeds downy. 



Order IV. TETRANDRM. Four stamens. 



MYRICA. Calyx a concave scale of tlie 

 ament ; corolla none ; styles two ; berry one seed- 

 ed. 



Order VI. HEXANDRM. Six stamens. 



274<. SMILAX. Calyx six leaved ; corolla 

 none ; styles three ; berry three celled ; seeds two. 



Order XII. POLYANDR1A. Many stamens. 



. POPULUS. Calyx a lacerated scale of the 

 ament ; corolla turbinate, oblique, entire. In the 

 fertile flowers, stigma four cleft ; capsules two cell- 

 ed, many seeded. 



Order XIII. MONJlUELPHM. Stamens united. 



276. JUNIPERUS. Barren flowers, calyx the 

 scales of an ament ; corolla none ; stamens three. 

 Fertile flowers, calyx scales of an ament, fewer, 

 three parted, becoming fleshy, united into a three 

 seeded berry, 



