(145 ) 
In Stokeséa the lobing of the corolla is deep, and the limb is flat- 
tened out toresemble a ray. Piptocarpha alone has anthers briefly 
caudate at base. Opposite leaves are reported for a few species, 
and in Lachnorhiza the leaves are all basal. The majority of the 
species are perennial herbs; others are shrubs, woody vines, or 
even small trees. 
Bentham and Hooker recognized 40 genera and about 530 species. 
Hoffmann, in Engler and Prantl’s Natiirlichen Pflanzenfamilien, 
described 46 genera and estimated the number of species at 638. 
Including the additional genera recognized in this paper with Hoff- 
mann’s, the total would reach 51. The greater portion of the 
species, 380 according to Bentham and Hooker, 450 according to 
Hoffmann, belong to the type genus Verzonda. Probably 600 
would be a safe estimate of the number of species in Vernonza 
alone. 
The tribe is most abundantly represented in the Western Hemi- 
sphere, particularly in South America, where the abundance of 
individuals and variety of species is remarkable. They extend south 
to Argentina and north into the United States. In the Eastern 
Hemisphere numerous species are found in Africa and the warmer 
parts of Asia, and a few occur in Australia. None is found in 
Europe. Accepting Hoffmann’s classification for the genera not 
occurring in North America, the distribution is shown in the fol- 
lowing list. The figures in parentheses denote the approximate 
number of species. 
Endemic to Africa: Apodocephala (2), Bothriocline (3), Cen- 
tauropsis (3), Corymbium (7), Erlangea (2), Gutenbergia (7), 
Herderia (2), Hoehnelta (1), Hoplophyllum (2), Msuata (1), 
Thysanurus (1), Volkensia (1). 
Endemic to Asia: Adexoox (1), Lamprachaentum (1). 
Endemic to Australia: Pleurocarpaea (1) 
Asia and Africa: Ethu/ia (1). 
Endemic to South America: Aldertznda (1), Blanchetia (1), 
Chronopappus (1), Bremanthus (18), Gorcetxta (1), Haploste- 
phium (2), Heterocoma (1), Lychnophora (17), Lychnophoriop- 
sis (1), Odospermum (1), Piptolepis (8), Pithecoseris (1), Pro- 
teopsis (2), Sipolista (1), Soaresta (1), Stelpnopappus (15), 
Telmatophila (1), Vanillosmopsis (7). 
Endemic to tropical America: Oliganthes (8), Orthopappus 
