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[ Affinities doubtful, perhaps connecting the 
Gymnosperm families of Tuxinee and Gnetacee 
to the Angiosperm families mentioned here 
and the Proteaceae. | 
1, Phoradendron Nutt. MISTLETOE. 
Flowers diclinous; ¢ and 2, on separate 
spikes. Anthers 2-celled. Stigma sessile. 
Fruit crowned by the persistent perigonium. 
1. P. FLAvEscens Nutt.—b. Ross Station. 
Spring. 
Parasite on oaks, poplars, ete. 
2. Arceuthobium Bieb. Pine MIsTLeToE. 
Dicecious. 4 flowers sessile. Lobes of the 
perigonium ovate, spreading. Anthers sessile, 
inserted on the middle of the perigonium lobes, 
l-celled, transversely dehiscent. 2 flowers 
shortly pedicillate, compressed, with 2-dentate 
limb. Stigma sessile. Berry transversely de- 
hiscent at the base. 
J. A. ocoipEnTaLE Engelm.—. Contra 
Costa mountains. Autumn. 
Parasite on conifers. 
Series 4. MonocHLaMyDEZ. 
Flowers incomplete. Number of carpidia 
corresponding to number of floral parts. 
Orper 1. SERPENTARI@. Leafy plants 
containing chlorophyll, as distinguished from 
the other order of the series, the Rhizanthew, 
