42 Field Columbian Museum Botany, Vol. 2. 



PORTULACACE.E. 



Portulaca pilosa Linn. Sp. PI. 445. 



Widely spreading on waste ground about the suburbs of San 

 Domingo (875). Very depauperate plants from the woodlands of the 

 center of Cozumel (1571). 



Portulaca oleracea Linn. Sp. PI. 445.' 



The common form of the species was collected from roadsides 

 about Charlotte Amalia, St. Thomas (447), San Domingo (874) and in 

 an old garden near the center of Cozumel (1581). A few individuals 

 of the species are scattered among the sesuvium on Perez Island 

 (1740, 1760); and several on Chico Island, Alaeran Shoals; the other 

 islands do not furnish a single plant of the species as yet. 



RANUNCULACEvE. 



Clematis dioica Linn Syst. ed x. 1084. 



C. Americana Mill. Open woodlands north of San Miguel, Cozu- 

 mel (1505), in full fruit. In November its profusion of white flowers 

 causes the shrubs over which it climbs to appear as if drifted over 

 with snow. 



MENISPERMACEyE. 



Cissampelos Pareira Linn. Sp. PI. 1031. 



Thickets near The Ovens, Santiagode Cuba(ii20, 1121). Whole 

 plant pubescent, leaves ovate-orbicular 5x5 cm. peltate, truncate at 

 the base; mid rib prolonged into an aristate tip. 



LAURACEiE. 



Persea Persea (Linn.) Cock. Bull. Torr. Club 19: 95. 



Laurtis Persea Linn. Persea Americana Mill. P. gratissima Gaertn. 

 Scattered about the opens and woodlands of Grand Cayman where 

 it is called " Pear," Bodden Bay road (1317). 



Cassytha filiformis Linn. Sp. PI. 35. 



Trailing over dunes at Santurce (283) and port of Ponce, Porto 

 Rico. Trailing over the beach sand dunes at the Creek, Cayman 

 Brae (1168). 



PAPAVERACE^E. 



Argemone Mexicana ochroleuca Lindl. ; Bot. Reg. t. 1343. 



An introduced weed in waste grounds in each of the following 

 localities, in none of which can it be considered native: Pagets and 

 Walsingham, Bermuda (64, 107); near dwellings at Guanica, Porto 

 Rico (709); Charlotte Amalia, St. Thomas (383) where it is called 

 ''thistle"; particularly large and fine specimens near San Domingo 

 City (775); Morro Hill, Santiago de Cuba (1092); ruins of Fort 

 George, Georgetown, Grand Cayman (1400); San Miguel, Cozumel 

 (*497)- 



