Unit 19 (019)

 

1. Different growth habits in Cornus or Dogwoods


There are a number or shrubby red twig and yellow twigged dogwoods such as Cornus

alba, Cornus sanguinea, and Cornus sericea (= Cornus stolonifera).


Cornus canadensis is an acid soil ground cover dogwood.


Layered or horizontal branching is found on Cornus alternifolia, Cornus florida, and

Cornus kousa.


Colorful bracts or modified leaves are found on Cornus florida and Cornus kousa.


2. Magnolia


Tepals is a term used when petals and sepals are indistinguishable from each other.

Magnolias and Tulips have tepals.



3. Useful Books


*1. Gardiner, Jim. 2000. Magnolias, A Gardeners Guide. Timber Press, 133 S.W.

 2nd Ave., Ste. 450, Portland OR 97204. 329 pages.

 SB/413/.M34/G37/2000 ($39.95)