VASCULAR PLANTS. 149 



1-locular; ovules 1 — 6; style short. Fruit an 

 indehisceut utricle, 1-— 6-seeded. 



l. Lemna, L 



Stamens 2. Ovary 1-locular. 

 U- floating. 



SUB-CLASS I. GYMNOSPERM^E. 



Phanerogams without ovary. 



ORDER XXXIX. CONIFERJE. 



Flowers diclinous. £ flowers on an axis, 

 bearing bracts at the lower and stamens at the 

 upper end. 



Family CVII. Taxineae. 



? flowers solitary. Ovule in the centre of a 

 fleshy axillus, simulating a drupe. 



1. Torreya, Am. 



Flowers from scale-buds. $ consisting of 

 bracts on the base of the axis, imbricated in 4 

 rows. Stamens go; connective peltate; anthers 

 4. $ : ovule immersed into an urceolate arillus. 

 £. branches opposite; leaves linear, decur- 

 rent, rigid, mucronate. 



Family CVIII Abietinese. 



$ flowers co, inserted spirally round an axis 

 on lignescent scales. Bracts distinct from the 

 fertile scales. Micropyle directed backwards. 



