TABLE OF CONTENTS 
NO. 220. JANUARY. 
The Planting of Trees as War Memorials 
yee eens I 
Alpine and Rock Gardens... 0... cece cece eee etree teen eee e eee renesereees 2 
Insects Attacking Shade Trees... 2.2... ese ee rece eee e reteset rrr 5 
Some Books from Colombia... 1... ccscec ccc eee rere eet e eee e ra reeeeee 7 
Hardy Woody Plants in The New Vork Botanical Garden.......+---+++++- IL 
Conference Notes for December. . 0.0... eee ce ec cnet eee tenner reteset? 15 
Notes, News and Comment......... 00 cece eee eee recent tener rse ese 16 
Accessiong. 6... ee ee eee eee eee ne ene ee ner eres nr esest 18 
No. 230. FEBRUARY. 
The Prickly Pears of Florida... 0.2.0.0. cece eee eee eee ener trentee 2z 
Dr. Henry Allan Gleason pointe First Assistant... .ccceeceee cee ereeee 39 
The Use of Plants in Decorative Design. .....----0eesee ee eer err errr! 40 
Hardy Woody Plants in The New ee Botanical Garden. ........0 eer eee AL 
Notes, News, and Comment. ... 0.00.00. cee cece recente tenner eee 45 
Accessions.. 0... ccc cece eee e cece cece erence ness nee e tees eeaen reenact 47 
No. 231. MARCH. 
Instruction in vada for Convalescent Seldiers and Sailors. .....---++++ Sr 
Trees and Children. . 0... ccc cece cee c cee eeee rece reece eee nee ner enenaarne 61 
A New Genus of eae Intermediate between Petalost nd Parosela.....- 64 
Hardy Woody Plants in The New York sae Garden. ......-.0202 e208 67 
Spring Lectures for 1919... 6. cece cece eee e eee e eee ens e eet e screenees? 41 
Notes, News and Comment...........ccceee cece e eter erent nretnes red 41 
No. 232. APRIL. 
The Exhibition of Plant Forms Used in Design......-.+---.0ecrrtrstects 95 
Hardy Woody Plants in ns New York Botanical Garden.....---++-+-+5+5 87 
Notes, News and Comment. .......ccecccecee reece eee e eee eters reed ot 
No. 233. May. 
Publications of the Staff, Scholars and Students of The New York Botanical 
Garden es the Vear 19t8. ccc ee eee eee teen renee ee 95 
Conference Notes... oo. cccccccccccccccceceeteeeseeeteeeen seen rnee tes 103 
peti — a in The New Vork Botanical Garden. ....-++----0-00+ 107 
ROCSHONS fsnlo Sndcoengoacadiuaccwens gee en eee pee ee ees III 
Notes, News and Comment... 00... cece cc eee ere ee este tenner eerste 113 
No. 234. JUNE. 
Brackenridge and His Book on Peiencce n.d eae eee neers 117 
he -ompetition in Decorative Design. .......--000 reer errr 124 
Complimentary Dinner to Dr. Britton 126 
