I. NEW SPECIES OF CUBAN SENECIONE/E. 



By J. M. GREENMAN. 



Dr. N. L. Britton has kindly submitted to the writer for identifica- 

 tion a very unusual assemblage of Senecionece from Cuba collected by 

 Mr. J. A. Shafer in 1909 and 1910. The results of a study of this 

 remarkable series of specimens are recorded as follows: 



Senecio Brittonii Greenman, nom. nov. Cacalia discolor Griseb. Cat. PI. 



Cuba, 157 (1866), not Senecio discolor (Sw.) DC. Prodr. vi. 412 (1837). 



Frutex 1-2 m. altus; ramis teretibus dense lanato-tomentosis plus 

 minusve glabratis; foliis alternis petiolatis lanceolatis 4-8 cm. longis 

 1 -1. 5 cm. latis obtusis juventate supra arachnoideo-tomentulosis mox 

 glabratis maturitate pallido-viridibus sublucidisque subtus persistenter 

 tomentosis obscure nervatis marginibus integris revolutisque basi 

 sensim angustatis; petiolis 8 mm. vel minus longis; innorescentiis ter- 

 minalibus corymbo-cymosis multicapitatis ; capitulis discoideis ca. 1 cm. 

 altis calyculatis; involucri squamis 5 lineari -lanceolatis 6-7 mm. longis 

 acutis arachnoideo-tomentulosis; floribus 5, corollis albido-ochroleucis ; 

 pappi setis albis corolla brevioribus; achasniis hirtellis. Along rivu- 

 lets in "pinales," Mulgajita, Cuba, C. Wright, no. 2870 (hb. Gray); 

 in arroyos on a palm barren, Santa Clara, Province of Santa Clara, 

 Cuba, 21, 22 March, 1910, N. L. Britton & /. F. Cow ell, no. 10180 (hb. 

 Field Museum cat. no. 294752, and hb. N. Y. Bot. Garden). 



Senecio carinatus Greenman, sp. nov. 



Frutex 1-1.5 m. altus; ramis subancipito-angulatis dense tomentosis; 

 foliis alternis rhomboideo-ovatis 3-8 cm. longis 1-3 cm. latis acutis 

 remote sinuato-dentatis basi integris cuneatisque supra glabris et sub- 

 lucidis subtus fulvo-tomentosis ; petiolis usque ad 1.5 cm. longis; in- 

 norescentiis terminalibus corymbo-cymosis multicapitatis tomentulosis ; 

 capitulis 1 cm. altis discoideis calyculatis; involucri squamis 5 oblongis 

 7 mm. longis 2-2.5 mm. latis obtusis glabris vel juventate sparse 

 arachnoideis ; floribus 5; corollis infundibuliformibus flavibus vel flavo- 

 albidis 5-dentatis; pappi setis albis corolla brevioribus; achaeniis pubes- 

 centibus. On rocky banks of river, vicinity of Camp San Benito, 

 Oriente, Cuba, altitude 900 m., 24 February, 1910, /. A. Shafer, no. 

 4079 (hb. Field Museum, cat. no. 300837, and hb. N. Y. Bot. Garden). 



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