62 SELECT PLANTS FOR INDUSTRIAL CULTURE 



gets suffocated. The plant will by gradual up-growth finally 

 form stems and roots sanded into a depth of fully 100 feet. 

 Psamma Baltica (R. and S.), from the Baltic and North Seas, 

 serves the same purpose. Both can also be used in the manner 

 of Sparta for paper material, for tyeing and for mats. Like 

 Elymus arenarius, it is not touched by grazing-animals. It 

 collects the sand-heaps at the tops of ridges, while the Elymus 

 fastens their sides. 



Psidium acidum, Martius. 



Higher regions on the Amazon River. A tree 30 feet high ; 

 its Guava-fruit pale yellow and of apple size. 



Psidium Araca, Raddi. 



From West India and Guiana to Peru and Southern Brazil, 

 where it is found in dry high-lying places. This is one of the 

 edible Guavas, recorded already by Piso and Marcgrav. The 

 greenish-yellow berry is of exquisite taste. 



Psidium arboreum, Vellozo. 



Brazil ; province Rio de Janeiro. This Guava-fruit measures 

 about one inch, and is of excellent flavour. 



Psidium Cattleyanum, Sabine.* 



The Purple Guava. Brazil and Uruguay. One of the har- 

 diest of the Guava-bushes, attaining finally a height of 20 

 feet. The purple berries are seldom above an inch long, but 

 of delicious flavour and taste, resembling thus far strawberries. 

 P. buxifolium (Nutt.), of Florida, seems nearly related to this 

 species. 



Psidium chrysophyllum, F. v. Mueller. (Abbevillea 

 Berg.) 



The Guabiroba Do Mato of South Brazil. This tree attains 

 also a height of about 30 feet. The fruit generally not 

 larger than a cherry. Perhaps other species of the section 

 Abbevillea would be hardy and worthy of cultivation. 



Psidium cinereum, Martius. 



Brazil ; provinces Minas Geraes and Sao Paulo. Also yield- 

 ing an edible fruit. 



Psidium cordatum, Sims. 



The Spice Guava. West India. This one attains the height 

 of a tree. Its fruit edible. 



