22 ARKIV FÖR BOTANIK. BAND 13. N:0 15. 



as a nomeii nudum cannot invalidate Vernonia Sprengeliana 

 ScH.-BiP. 



Subsect. Buxifolise. 



Frutices ramosissimi. Folia coriacea, parva. Inflo- 

 7'escentia cymosa, cymis hrevissimis, uni- vel paucifloris, cum 

 calathidiis primariis pedunculatis axe valde ahbreviato insi- 

 dentibus, item umhellas subsimplices, dejjauperatas formanti- 

 hus; hracteis joUaceis cymis sujfidcientibus. Calathidia parva, 

 circ. 10-flora. Involucrum inf undihuli forme vel anguste in- 

 fundibidiforme-campanulatum, squamis imhricatis, suhglabris. 

 Receptaculum nudum, suhplanum. Pappi setce inferiores per- 

 sistentes, rigidulce, crassiuscidce, paullulo complanatce, ex- 

 teriores hreves, parum distinctce. Corolla glabra. Antherce 

 ultra 2,5 mm longce, ligula longa, Y3 — 74 long, antherce. AcJice- 

 nium gldberrimum, glandidosum. 



A very small subsection, including only two species from 

 Hispaniola, easily recognized by their shrubby rigid habit, 

 the peculiar structure of the inflorescence, and by their gla- 

 brous achenes. Gleason made this subsection a particular 

 division of Lepidaploa: Scorpioidece aggregates; j^et he refers 

 to it in his »Revision » V. TJiomcB Benth. , which he correctly 

 discards in his »Studies», and F. yunquensis Gleason, which 

 does not belong here at all. 



The two species of the subsection have no allies in the 

 West Indies, nor in Central America, nor in the Andes. Possibly 

 some Brazilian species, e. g. V. nitidula Less., may approach 

 to the Buxifolice. Future investigations may prove this. 



Conspectus specierum hujus subsectionis. 



I. Folia subtus glabra. Calathidia 8-flora. Pappi setae 

 stramineo-rufescentes. V. buxi folia (Cass.) Less. 



II. Folia discolora, subtus appresse tomentella. Calathidia 

 9 — 11-flora. Pappi setae stramineo-purpurascentes. 



V. Tuerckheimii Urb. 



Teriioiiia buxifolia (Cass.) Less. 



Tabula nostra I, fig. 11 (habitus). 



Lepidaploa buxifolia Cassini, 1823, p. 18. 

 Proustia domingensis Sprengel, 1826, p. 502. 



