528 PROCEEDINGS OF THE AMERICAN ACADEMY. 



1. S. chamaecaula A. H. Moore spec, nov. glabra vel subglabra ; 

 longissimis caulibus diffusis prostratis ; foliis late linearibus supra 

 infraque paulum scabris plerumque ca. 3 cm. longis .4-6 cm. latis 

 margine non revolutis, nervo medio ; capitulis globosis vel subglobosis ; 

 receptaculis ca. 4-5 mm. latis ca. 7 mm. longis ; achaeniis crassis 

 uniaristatis. Haec species a ceteris achaeniis uniaristatis margine con- 

 stanter crassissimis longe abest. 



Distributio. — In Borneo boreali. 



Specimen typicum. — Borneo: F. W. Burbidge, ann. 1877-1878 (in 



Herb. Gray.). 



2. S. NERVOSA Chod. 1.8-3 dm. alta sparse ciliata ; caulibus erectis 

 vel ascendentibus ; foliis lanceolatis vel ovatolanceolatis obtusis sine 

 squamulis valde pinninervatis, petiolis valde pilosis vel subtomentosis ; 

 capitulis semiglobosis, involucri squamis oblongis ;. radicibus fasciculatis. 

 — In Bull. Herb. Boiss. ser. 2, iii, 724 (1903). 



Distributio. — In regione cursus superioris fluminis Apa in Paraguay. 

 Specimen examinatum. — Paraguay: E. Hassler, 8274, in regione 

 cursus superioris fluminis Apa. 



3. S. UREXS Jacq. 2-5 dm. alta glabra aut plus minusve ciliata ; 

 caulibus decumbentibus ; foliis anguste vel late lanceolatis raro lineari- 

 bus acutis acuminatisve 3 5-5.5 cm. longis, supra squamulis albis 

 scabris infra glabris, margine saepe perminute revolutis saepius tri- 

 nerviis ; pedunculis plerumque 1.4-2 dm. longis ; capitulis globosis 

 vel subglobosis, involucri squamis ovatis ; receptaculis ca. 2 mm. crassis 

 et 5 mm. longis ; achaeniis tenuissimis plerumque aristis duabus ciliis 

 persimilibus et inaequalibus. — Enum. Syst. PI. Carib. 28 (1762), et 

 Select. Stirp. Am. Hist. 214, t. 126, f 1 (1763); DC. Prod, v, 625 

 (1836) : SantoUna pyrethri sapore humi fusa, Plum. Cat. PL Am. 10 

 (1703). 



Synonymia. — 



Cotula SpilantJms L. Mant. PI. 116 (1767). 



Bidens angustifoUa Lam. Encycl. Meth. (Bot.) i, 416 (1783). 



Bidens angustifoUa Lam. var. minor Poir. Lam.-Poir. Illustr. 

 Genres iii, 244, t. 668, f. 2 (1823). 



SpUanthes repens Spreng. ex DC. Prod, v, 625 (1836). 



Ceratocephalus urens (Jacq.) Ktze. Bcv. Gen. PI. i, 326 (1801). 

 Distributio. — In Jamaica, Martinica, litoribus colombianis borealibus, 

 Brasilia, et adventive (f) Altatae in Mexico. 



Specimina examinata. — Mexico : Sinaloa : T. S. Brandegee, Al- 

 tatae, Sept. 2, 1904. Jamaica: A. S. Hitchcock, Luceae, Ian. 3, 

 1891, Port Antonio, Dec. 26, 1890, Port Morant, Dec. 22, 1890; /. 

 Moulton- Barrett, Jackson Tower, lun. 15, 1902 ; C. F. Jli/lspaugfi, 



