DR. KIRK ON A NEW GENUS OF LILIACEA. 499 
DIAGNOSTIC TABLE OF GENERA OF THE CONANTHEROUS LILIACE X. 
I. Ovary semiadherent ; stamens unequal. 
l. Zephyra, Dav. Stamens 2 abortive; anthers opening by a terminal pore, spurred at base. 
2. Cyanella, Linn. Stamens all fertile, one enlarged, pendulous. 
II. Ovary semiadherent ; stamens equal. 
3. Conanthera, Ruiz & Pav. Perianth 6-parted; anthers connate, opening by pores, ending in a 
single arista. 
4. Cumingia, Dav. Perianth campanulate ; anthers connate, opening by pores, ending in a double 
arista. 
5. Pasithea, Dav. Stamens free, opening by longitudinal valves the length of the anther. 
III. Ovary free; stamens equal. 
6. Walleria, Kirk. Stamens opening by pores, perianth 6-parted. 
EXPLANATION OF THE PLATE. 
PILATE LII. 
Fig. I. Walleria nutans, nat. size. 
1. Flower, magnified. 
2. Inner surface of stamens. 
3. Ovary. 
4, Transverse section of ovary. 
Fig. II. JValleria Mackenzii, nat. size. 
1. Flower, magnified. 
2. Stamens and ovary. 
3. Apex of anther. 
4. Transverse section of ovary. 
