(i 4 6) 



comparatively small number of species being found in 

 temperate regions, a few of which are in North America. 

 Psilotum nudum is another plant related to the ferns, 

 and of rather rare occurrence in cultivation. 



At the south end of the center bench is a part of the 

 cycad collection. Microcycas calocoma, a rare Cuban 

 plant, is among these. There are a number of specimens 

 of the American genus Zamia, including representatives 

 from Florida and the West Indies. 



House No. 14. The plants in this house, which is the 

 same size as No. 2, are natives of warm temperate regions, 

 or of the greater altitudes in the tropics; they are not 

 hardy in our climate. The larger specimens of the tem- 

 perate collections will be found in the Central Display House. 



The plants here are arranged in sequence of families as 

 far as cultural conditions will permit, thus furnishing a 

 collection for the comparative study of plant families and 

 genera. The sequence begins on the right hand, as one 

 enters from the Central Display House, and continues on 

 and around this house, terminating on the west bench 

 opposite the point of starting. First come the temperate 

 ferns and their allies, and the members of the pine and yew 

 families. Then follow the endogenous plants, those which 

 are typified by the common lily, the grass, and the palm. 

 Following these, and forming the greater part of the collec- 

 tion, are the exogenous plants, those with net-veined leaves. 

 Two curious plants among the endogens are members of 

 the lily-of-the-valley family; they are the butcher's broom 

 (Ruscus aculeatus), and the double-tongue (Ruscus Hypo- 

 glossum). The iris family, to which belong the flags, is 

 represented by an example from Bermuda, known as the 

 Bermuda iris (Sisyrinchium Bermudiana); to this genus 

 belong the blue-eyed grasses of the United States. The 

 amaryllis family has as a representative a yellow star 

 grass (Ilypoxis villosa) from southern Africa, much re- 

 sembling the species found wild in the eastern United 

 States. A few specimens of Paphiopedilum insigne are 



