238 FLORA OF BRAZIL. 



extus ad apicem parce pilosis. Corolla glabra. Achaenium 

 oblongum, compressum, glaberrimum, 3-costatum. Pappus 

 1-serialis, paleis 8 late lanceolatis acuminatis serrulatis. 



A very distinct species from any of those hitherto de- 

 scribed. 



Lagascea, H.B. et K. 



Sectio 1. Lagasca, Cav. 



2220. L. Kunthiana : annua, tota molliter hirsuta, foliis longe 

 petiolatis late ovatis acuminatis serratis trinervibus, capitu- 

 lis 1-floris in glomerulum foliis cinctum dense adgregatis, 

 glomerulis oppositifoliis pedunculatis petiolo subaequa- 

 libus. 

 Hab. Dry Campos, near Boa Esperanca, Province of Piauhy. 

 Feb. 1839. 



Herba annua, erecta, subramosa, 1-2-pedalis. Folia op- 

 posita, 4-4| poll, longa, l|-2 poll. lata. Petioli 12-15 lin. 

 longi. Involucrum proprium 1-seriale, gamophyllum, tubu- 

 losum, glanduloso-striatum, 5-partitum, lobis lanceolatis 

 acuminatis 3-nervibus. Corolla alba, extus pubescens. Achae- 

 nium oblongum, compressum, glaberrimum. Pappus unise- 

 rialis, coroniformis, brevissimus, subdentato-ciliatus. 



The structure of the corolla in this plant is very remarkable, 

 the marginal veins of the laciniee being so far removed from 

 the margins as to be at a greater distance from them than 

 from the axis, resembling in this respect the genus Hymeno- 

 pappus. There is also sometimes a central vein, but slight, 

 and I have seen none of them reach below the divisions of 

 the limb. The fine nerves of the tube are somewhat of a 

 glandular structure. In the following species, and in another 

 in my herbarium, which I believe to be L. mollis, Cav., the 

 veins are also distant from the margins, but not nearly so 

 much as in the present one. 



1741. L. campestris; herbacea tota molliter hirsuta, folu s 

 petiolatis ovatis vel ovato-oblongis obtusis subserratis tn- 



