FLORA OF BRAZIL. 239 



nervibus, capitulis 1-floris in glomerulum foliis parvis oblon- 



gis cinctum dense adgregatis, glomerulis oppositifoliis 



pedunculatis folio plerumque longioribus. 

 Hab. Arid Campas near Villa do Ico, Province of Ceara. 



Aug. 1838. 



Herba annua ? ramosa, diffusa. Folia superiora alterna, 

 sub lente eleganter reticulata, 9-12 lin. longa, 3-4 lin. lata. 

 Petioli 2 lin. circiter longi. Folia inferiora ignota. Involucrum 

 proprium 1-seriale, gamophyllum, tubulatum, glanduloso- 

 striatum, 5-partitum, lobis lineari-lanceolatis acuminatis 

 uninervibus. Corolla alba, extus pubescens. Achesnium ob- 

 longum, compressum, glaberrimura. Pappus uniserialis, 

 coroniformis, brevissimus, ciliatus. 



This species agrees with L. mollis in habit. As in that species 

 the upper leaves are alternate from the peduncles arising 

 opposite to them. The lower ones are no doubt opposite as in 

 L. mollis, but my only specimen is unfortunately destitute of 

 them. 



LORENTBA, Less. 



Sect. 1. Cryptopetalum, Cass. 



2215. L. oligocephala ; caule erecto trichotomo-ramoso, ramis 

 teretibus pubescentibus, foliis sessilibus linearibus acutis 

 apiculatis margine subrevolutis infra medium longe ciliatis 

 supra pubescenti-scabridis subtus nigro-glanduloso-punc- 

 tatis nervo medio piloso-pubescentibus, pedunculis termi- 

 nalibus subbracteatis 1-cephalis, capitulis 16-floris, invo- 

 lucri squamis 5 oblongis acuminatis pubescentibus, achae- 

 niis pilosis, pappo disci biseriali aristato serrato ineequali, 

 radii 1-seriali setis 4 elongatis caeteris triplo fere breviori- 

 bus tenuioribus. 



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

 Feb. 1839. 



Herba annua, erecta, 1-1^-pedalis. Folia opposita, 2 poll, 

 longa, 2 lin. lata. Pedunculi subpollicares. Involucrum 



