amining flowering plants and identifying them by means of a key. 
Prerequisite: an elementary course in botany. Two credits. Fee, 
$10. Wednesdays, 4 p.m., beginning September 26. | Miss Rusk. 
*B11-12. Structural Botany of the Higher Plants.—Thirty 
three-hour sessions (one lecture, one two-hour laboratory period). 
This course is designed to employ the special facilities of the 
Brooklyn Botanic Garden. It deals chiefly with gross morphol- 
ogy and variation of leaves, stems, and fruits, and a systematic 
study of the flowering plants. It utilizes the living material in 
the conservatories. Of special importance is a written report, 
comprising an investigation of living plants and a study of ref- 
erences in the library. The topic for this report will be selected 
from the following : 
1. Development of perforated leaves in Monstera. 
2. Vivipary in ferns and flowering plants. 
Comparison of 
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the succulent plants of South Africa and 
America. 
4. Comparison of flowers in various species and hybrids of Cit- 
rus. 
5. A comparison of structure in several species of orchids. 
6. A study of cladophylls and phyllocladia. 
7. A study of the leaves and stinging hairs of Laportea moroides. 
8. Growth and fruit production in the banana. 
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9. Variation in shape and coloring in leaves of croton (Codt- 
acunt). 
10. Types of pollen in greenhouse plants. 
11. Morphological variation in spines and prickles. 
12. Structure of a species of greenhouse plant. 
13. Structure of insectivorous plants. 
Four credits. Prerequisite, General Botany (B1) or its equiva- 
lent. Fee, $10. Saturdays, 9 to 12 a.m., beginning September 29. 
Dr. Svenson and Miss Rusk. 
*B13-14, Trees and Shrubs of Greater New York.—Twenty 
two-hour sessions. A course of outdoor lessons in the parks and 
woodlands of Greater New York, the principal object being to gain 
a ready acquaintance with the common trees and shrubs of the 
eastern United States, which are well represented in this region. 
