81 



in northern South America and Panama. It contains in the 

 neighborhood of a dozen species, and is at once separated from 

 Paphiopedihun by the character of the h'p in which the margin 

 of the opening is marked by a broad infolded portion. In addi- 

 tion to this the ovary is 3 -celled and the sepals valvate in the 

 bud ; the scape, moreover, bears several, sometimes many, flowers. 



We have then in the New World three of the genera, two, 

 Phragmipedimn and Selenipedhun not known elsewhere, and 

 Cypripediuni which it shares in distribution with the Old World. 

 The only strictly Old World genus is Paphiopedihim. 



The meeting adjourned at 4:30 p. m. 



Percy Wilson, 



Secretary 



OF INTEREST TO TP:ACHERS 



College Entrance Botany (Concluded) 



specifications of the topics to be studied 



Part I. The General Principles of (A) Anatomy and Morphology , 

 {B) Physiology and Ecology 



A. Anatomy and- Morphology. 



The Seed. Four types (dicotyledon without and with endo- 

 sperm, a monocotyledon and a gymnosperm) ; structure and 

 homologous parts. Food supply ; experimental determination 

 of its nature and. value. Phenomena of germination and growth 

 of embryo into a seedling (including bursting from the seed, as- 

 sumption of position and unfolding of parts). 



The Shoot. Gross anatomy of a typical shoot ; including the 

 relationships of position of leaf, stem (and root), the arrangement 

 of leaves and buds on the stem, and deviations (through light ad- 

 justment, etc.) from symmetry. Buds, and the mode of origin of 

 new leaf and stem ; winter buds in particular. Specialized and 

 metamorphosed shoots (stems and leaves). General structure 

 and distribution of the leading tissues of the shoot ; annual 

 growth ; shedding of bark and leaves. 



The Root. Gross anatomy of a typical root ; position and 

 origin of secondary roots ; hair-zone, cap and growing-point. 



