V 



80 Field Columbian Museum Botany, Vol. 2. 



Cozumel, leaves 6 x 3.5 cm. (1583), a beautiful and attractive object 

 along the shore at rare intervals. 



MYRTACE.E. 



Psidium Guajava Linn. Sp. PI. 470. 



Introduced into Grand Cayman from Jamaica, it has now run 

 wild, as a shrub, throughout the fields and open woods of the central 

 portion and become a veritable pest (1378). Leaves elliptical, 8 x 2.7 

 cm., bluntish, the midrib projecting as a curved point, veins very 

 prominent beneath, the midrib very slightly puberulous. 



Jambosa Jambos (L.) comb. nov. 



Eugenia J ajnb'os Linn. Sp. PI. 470. Specimens from deep woods 

 on the mountain heights above Charlotte Amalia (511) and moun-. 

 tain sides near Port Antonio, Jamaica (1149). A large tree with 

 glabrous branchlets and lanceolate-acuminate pointed leaves 19x4 

 cm., narrowed at the base to the short (1 cm.) petiole, the veins quite 

 prominent beneath; peduncles terminal 5-flowered, the flowers white 

 or creamy, and large (8 cm. diameter), sepals brownish punctate. 



Eugenia baruensis Jacq. Coll. 3:183. 



Plentiful in scrublands upon the table land above "The Creek," 

 Cayman Brae (1157) where it is called "Strawberry bush." It yields 

 at this season a large quantity of pleasant tasting though somewhat 

 astringent and terebinthine edible berries, about the size of black 

 cherries. 



Eugenia monticola (Sw.) de C. Prod. 3:275. 



Myrtus Sw. Dry fields at Walsingham, Bermuda (96). 



Chytraculia Chytraculia (L.) comb. nov. 



Myrtus Chytraculia Linn. Calyptranthes Chytraculia Sw. At the 

 Caleta, Island of Cozumel (1537). Our specimens agree with Wright 

 No. 172 Cuba. A low glabrous-branched tree, leaves 7-9 x 3.5-4. cm. 



MELASTOMACE.E. 



Clidemia hirta (Linn.) Don. Mem. Wern. Soc. 4:309. 



Melastoma hirta Linn. Hedgerows and partial opens about Port 

 Antonio, Jamaica (1144). 



Miconia prasina (Sw. ) de C. Prod. 3:188. 



Melastoma prasinum Sw. Fencerows and hillsides above Charlotte 

 Amalia, St. Thomas (517). Leaves 10-16x4.5-5.5 cm., perfectly 

 smooth and glossy above, slightly rusty-downy on the midribs beneath, 

 margin minutely crenate with now and then one or more of the vein- 

 lets, leading to the convexity of the crenations, projecting as a cusp, 

 petioles 2-3 cm. long, those of the young leaves rusty-downy. 



Miconia trinervis (Sw.) Griseb. Fl. Br. W. I. 257. 



Melastoma trinervium Sw. Roadsides and hedges near Caguas, 

 Porto Rico (238). The specimens have a ferruginous tomentosity on 



