102 MISC. PUBLICATION 303, U. S. DEPT. OF AGRICULTURE 



Cissus incisa (Nutt.) Des Moul. Treebine. 



Vitis incisa Des Moul. 



Range : 11, 16, 17, 20, 22, 25, 29, 30, 31. 

 Site : Dry, well-drained, sun. 

 Fruit: Berry, available in October. 



A vigorous evergreen vine occurring in sandy and other soils ; flowers June- 

 August ; easily transplanted ; propagation is by seed or by division of the woody 

 tubers. 



Observations: Birds especially fond of the berries. 



Cissus stans, see Cissus arborea. 



Citharexylum brachyanthum Gray. 

 Range: 11, 17. 

 Site : Dry, sun. 

 Fruit: Drupe. 

 A small, much-branched, somewhat spinose evergreen shrub. 



Citharexylum fruticosum L. Fiddlewood. 



C. villosum Jacq. 



Range : 17, 30, 31, 32. 

 Site : Dry, sun. 

 Fruit : Drupe. 



A large shrub to small tree ; evergreen ; flowers all year round ; ordinarily 

 occurs in sandy soil. 



Citharexylum villosum, see Citharexylum fruticosum. 



Citrus trifoliata L. Bitter orange. 



Poncirus trifoliata (L.) Raf. 

 Range: 17, 20, 29, 30. 

 Site: Well-drained, sun. 

 Fruit : Berry, available September-October. 



A small, thorny, thicket-forming tree; flowers April-May; a native of China 

 but naturalized in the regions indicated ; used as grafting stock for oranges ; 

 much cultivated. 

 Cladothamnus campanulatus, see Rhododendron albiflorum. 



Cladrastis lutea (Michx.) Koch. Yellow-wood. 



Range : 25, 27, 29. 

 Site: Dry, well-drained, sun. 



Fruit : Legume, available September-October, persistent through win- 

 ter or soon falling. 



A small to large tree ; flowers May-June ; ordinarily occurs on rich, cal- 

 careous or neutral soil ; propagated by seeds sown in spring ; very handsome 

 in flower and much cultivated. 



Clematis spp. 



The species are propagated by seeds sown under glass in spring. 



Stomach records (in addition to specific records) : Black-tailed deer. Ob- 

 servations (in addition to specific records) : Goldfinch. 



Clematis addisonii Britt. Smooth clematis. 



Viorna addisonii (Britt.) Small. 

 Range: 27, 28. 

 Site : Well-drained, sun. 

 Fruit: Achene. 

 A shrubby vine ; flowers in May ; root system deep ; stems weak. 



Clematis arizonica Heller. 

 Viorna arizonica Heller. 

 Range: 11. 

 Site: Dry, sun. 

 Fruit: Achene. 

 A vine. 

 Clematis bigelovii Torr. 



Viorna bigelovii (Torr.) Heller. 

 Range : 14. 



Site : Well-drained, sun. 

 Fruit : Achene. 

 A vine. 

 Clematis brevifolia, see Clematis liffusticifolia. 



