PLANTS OF THE TRES MARIAS ISLANDS. 85 



Cordia soiiorae Rose. 



A recently described species from Sonora. May 3 to 25, 1897 (No. 



4207). 



Cordia iiisularis Greeninan. 



Cordia iiixnlaris Crcenman, Proc. Amer. Acad. 33 : 483. 1898. 



The original description is as follows : "Shrub 3 to 5.5 m. high ; stems 

 and branches glabrous, reddish brown, conspicuously dotted with 

 numerous whitish lenticels; the extreme branchlets covered with hir- 

 sute pubescence; leaves scattered, elliptic-ovate or sometimes slightly 

 obovate, 1.5 to 3 cm. long, 1 to 1.5 cm. broad, narrowed below into a 

 short petiole, obtuse, the upper portion more or less deeply crenate- 

 dentate, occasionally sharply toothed, entire toward the base, hispid 

 above, spreading hirsute-pubescent beneath, especially on the midrib 

 and veins; inflorescence capitulate; heads small (after the corolla has 

 fallen, about 5 mm. in diameter) ; peduncles, during anthesis, 1 cm. or 

 less in length, covered with a spreading hirsute pubescence; calyx 2 

 mm. long, 5-dentate; teeth short, acute; corolla 3 mm. long, nearly 

 cylindrical, with short recurved lobes, externally glabrous, pubescent 

 inside along the line of the filaments, stamens included; style a little 

 exserted. Collected by E. W. Nelson on Maria Madre Island of the 

 Tres Marias group of islands. May 3 to 25, 1897 (No. 4296)." 



Tournefortia Candida Walp. 



Not previously in herbarium. May 3 to 25, 1897 (Nos. 4217 and 

 4229). 



Tournefortia cymosa L. 



I have only seen specimens from Guatemala. May 3 to 25, 1897 

 (No. 4189). 



Tournefortia velutina H. B. K. 



Reported from the west coast of Mexico and Guatemala. May 3 to 

 25, 1897 (No. 4209). 



Heliotropium indicum L. 



Common in Mexico and most tropical countries. May 3 to 25, 1897 

 (No. 4253). 



Heliotropium curassavicum L. 



Common in Mexico and South America as well as in the Old World. 

 Reported in the United States as far north as Oregon and Virginia. 

 May 3 to 25, 1897 (No. 4313). 



Ipomoea bona-nox L. 



A common tropical plant extending into Florida. May 3 to 25, 1897 

 (No. 4269). 



Ipomoea peduncularis JJertol. 



Common in Mexico and Central America. May ,'t to 25, 1897 (No. 

 4235). 



