VASCULAR PLANTS. 117 



0. Flowers epigynous. Stamens inserted on 

 the perigonium, opposite its lobes, and of the 

 same number. Ovary 1-locular, 1-ovular. Fruit 

 baccate. Seed often containing several em- 

 bryos. 



i- Phoradendron, Nutt. 



Flowers diclinous; 6 and $ , on separate 

 spikes. Anthers 2-locular. Stigma sessile. 

 Fruit crowned by the persistent perigonium. 



2£. on oaks, conifers, mimosae, etc. 



2. Arceuthobium, Bieb. 



Dioecious. & flowers sessile. Lobes of the 

 perigonium ovate, spreading. Anthers sessile; 

 inserted on the middle of the perigonium lobes, 

 1-locular, transversely dehiscent. ? flowers 

 shortly pedicellate, compressed, with 2-dentate 

 limb. Stigma sessile. Berry transversely de- 

 hiscent at the base. 



U . on conifers. 



SERIES IV. MONOCHLAMYDEJE. 



Flowers incomplete. Number of seed leaves 

 correspondent to floral parts. 



ORDER XXVIII. SERPENTARI.E. 



Leafy plants containing chlorophyll, as dis- 



