PLANTS OF ABANDONED CLEARINGS. 59 
(Cestrum pallidum), the lemoncito or orange berry (Triphasia trifo- 
liata), and the piod or beach plum (X¢mentéa americana), which they 
spread in the same way. Pineapples continue to grow for years where 
they are planted, and in old garden spots are found plants of the intro- 
duced arrowroot (Maranta arundinacea) (Pl. XXV), the native arrow- 
root (gabgab), Tacca pinnatifida, turmeric, wild and cultivated ginger, 
and the cassava plant, or mandioca (Janzhot manihot). Among the 
trees and shrubs which do not spread of their own accord in Guam are 
the tamarind, the cashew nut (Anacardium cectdentale), the tree which 
in Honolulu is called the ‘golden shower” (Cassia fistula), the pome- 
eranate, the scarlet hibiscus, and the ornamental Phyllaureas, Aralias, 
and Acanthaceae of the gardens. It is interesting to note that of the 
three Annonas introduced into the island the custard apple or bullock’s- 
heart (A. reticulata) is the only species found wild, the soursop 
(A. muricata) (P1. XXXIV), and the sweet-sop or sugar apple (A. 
sguamosa) (Pl. XX XV), growing only where planted. 
Among the plants which on account of their sterility must be planted 
by man are the textile screw pine or aggag UL tandanus tectorius), 
only one sex of which grows on the island; the seedless breadfruit 
or lemae (Artocarpus communis); taro (Caladium colocasia) and yams 
(Dioscorea spp.), which are seldom known to produce seed; sweet 
potatoes, which are propagated by cuttings, and bananas and plan- 
tains, which are seedless and must be grown from root suckers. 
Young plants of Agave v/vipara, which the natives call * lirio de palo” 
or the ‘tree lily,” are often found growing in circles, with the dead 
mother plant at the center. 
Whole fields are overgrown with guava bushes, just as in the 
Hawaiian Islands and many other tropical countries; but the.common 
lantana (Lantana camara) and the sensitive plant (W/emose pudica), 
which are pests in so many parts of the world, have, fortunately, not 
yet found their way to Guam. 
Among the plants which have escaped from gardens are the pretty 
blue pea (Clitoria ternatea); the crimson-flowered cypress vine (Qua- 
_moclit quamoctit), which the natives call ‘‘angel’s hair” (cabello del 
angel); Lochnera rosea, sometimes known as_ the Madagascar peri- 
winkle: the marvel of Peru, or four-o’clock (Mirabilis jalapa), and 
the touch-me-not or garden balsam (/inpatiens balsam/na). ‘Tomatoes 
bearing small fruit, either oval or globular, are also found growing 
near abandoned gardens, and occasionally gourd vines (Lagenaria 
lagenuria) are seen bearing bottle-shaped fruit. 
On the edges of clearings, growing in partial shade, are two bur- 
bearing plants called ‘‘dadangse” (stickers) by the natives: Urena 
sinuata, © malvaceous shrub with five-lobed leaves and rose-purple 
flowers, and 7rinmfetta rhomboidea, belonging to the Tiliaceae, with 
simple leaves and inconspicuous yellow flowers. The fruit of both is 
