

[From the Botamcal G 



, April, 1891.1 



I 



New or noteworthy Coiiipositse from Guatemala. 



JOHN M. COULTER. 



Mr. John Donnell Smith has placed in my hands for deter- 

 mination his recent and large collections of Compositae from 

 Guatcmala. From the long and interesting list of species that 

 these collections contain, the following have been selected for 

 pubHcation as being new or especially noteworthy. In the 

 final and critical study of species the herbarium and library of 



Harvard University were 



d, ahd thanks are due to Dr. 



Sereno Watson for his courtesy in supplying every facility for 

 such study. Mr. Henry E. Seaton, my assistant, made all the ■ 

 dissections and rendered valuable service in generic deter- 



minations. 



Vernonia TRIFLOSCULOSA HBK. — Published descriptions 



say that the leaves are **very entire," but specimens from 



San Luis, Depart. 



ry. D. S. 2377), show that the 



larger leaves are apt to have some callous serrulations. 



VerN0NL\ LEIOCARPA DC— Abundant and very fine ma- 

 tcrial from Pacaya, Depart. Amatithm' (7- ^. S. 2405), show 

 that the hcads are at first cylindrical, becoming **ovate" 

 only with ripening and spreading, and that they are mostly 

 3-(sometimes 4)flowered, rather than *'5-flowered.' ' 



Vernonia Salvin.e HemsL, var. canescens, n. var. — 

 Leaves white beneath with a dense pannose tomentum. — 



\ 



M 



Stevia COMPACTA Benth. — Specimens fromVolcan de Agua 

 (y. D. S. 2327) show that the under surface of the leaves is apt 

 to be more or less woolly, and that the branches and inflores- 

 cence may have more or less floccose wool. 



Eupatoriimi Donnell-Sniithii n. sp.--UsuaIly tall and 



rather stout perennial herb, hirsutely pubescent especially 

 above and in the inflorescence (the spreading hairs of the stem 

 somewhat glandular and viscid), often glabrate below, leafy up 

 to and in the inflorescence : leaves opposite, broadly ovate, 

 crenate-serrate, acutc or acuminate, more or less pubescent 

 or even hirsute especially beneathand on the prominent veins, 

 4 to 10 cm. long, 2.5 to 6.5 cm. broad, the lower long-petioled, 



