(METACHLAMYDEAE) 
& 
Olethraceae « Y 
Ericaceae Y 
Iflyrsinaceae - Y 
Sapotaceae - U 
Styraceae Y 
Loganiaceae « A 
Gentianaceae A 
Apocynaceae A 
Asclepiadaceae A 
Convolvulaceae - A 
Hydrophyllaceae A 
Boraginaceae H 
Cordiaceae H 
Verbenaceae H 
Menthaceae A 
Solanaceae A 
Scrophulariaceae A 
Bignoniaceae A 
Gesneriaceae A 
Lentibulariaceae Y 
Acanthaceae A 
Plantaginaceae - A 
Rubiaceae - U 
Caprifoliaceae H 
Valerianaceae U 
Cucurbitaceae - Y 
Lobeliaceae Y 
Aeteraceae 
-Vernonieae “ Y 
Eupatorieae H 
Astereae U 
Inuleae U 
Heliantheae U 
Helenieae U 
Anthemideae U 
Senecioneae U 
Mutiaieae U 
Cichorieae U 
The attempt has been made to make an equable division of preferences, under 
the following provisions i 
Special groups to be sent to the institutions most accessible to specialists 
studying them. (Slight exception has been made in order to provide a reasonably 
proportionate representation to A and H, but it assumed that any specimens will 
be freely loaned.) 
Where otherwise no preference, further assignment has 
b) Paramo and cool forest plants to A 
c) Trees and shrubby plants to H (because of 
d) Economic families to U (because of 
e) Tropical lowland plants to Y 
been determined thus: 
nearby Arnold Arboretum) 
U, S. Dept. Agriculture) 
