(I 



t3GU USEl'lL I'LANTS OK GUAM. 



Jlnrn), the U'livcP and pods of wliicli must be mitluTed when young and tender, and, 

 like otlier frrei'ii foods, must not l)e indulj:;ed in too freely, owinjij to tlieir etitliartic 

 jiroperties. The chemical comi)osition of several jjreen vegetables, including species 

 of HrajJsica and Amarautlius, has been published by Mr. Walter C. lilasdale, who 

 shows that the species of Amaranthus analyzed by him contains a much higher 

 jiercentage of protein than the crucifers." 

 Several varieties of Amaranthus are cuUivated in Bengal, the tender succulent tops 

 f the young stems and branches of which are served as a substitute for asparagus.'' 



Potamogetonaceae. Pondweed family. 



This family is rei>rcscnted in (!uam by Potamogeton natans mariannensiH, P. zizii, 

 Ji'ii/i/iid ninritiinx, and Udludiili' uiiiiicrris. 



Potamog-eton fluitans ( Jaudich. , not Roth. Same as Potamogeton natans mariannensis. 



Potamog'eton gaudichaudii Cham. A Schlecht. Same as Potamogeton zizii. 



Potamog'eton mariannensis. See Potamogeton natans mariannensis. 



Potainogeton natans mariannensis. Floating pondweed. 



bumily I'otamogetonaceae. 

 A submerged water plant with creeping rootstock; upper leaves floating, elliptit'al, 

 somewhat pointed at each end, 5 cm. long, one-half as broad, many-nerved, long- 

 petioled; petiole flat; nerves conspicuous on both sides, but neither prominent nor 

 sunken; peduncle terete, slender; flower spike cylindrical, slender, with flowers of 

 the size of those of I', ubiungits. 



In rivulo aquae dulcis urbem Agana insulae Guajan e Marianis irrigante a cele- 

 berrimo (iaudichaud lectus, ad P. natantis tribum pertinet. (Chamisso & Schlech- 

 tendal, IJnua-a, vol. 2, p. 228.) 

 Keferences: 



I^otamoyeton natans mariannensis (Cham. & Schlecht. ) Nolte; K. Schu. & Laut. 



Fl. Deutsch. Schutzgebiet. in der Siidsee 162. 1901. 

 Potamogeton marlannensk Cham. & Schlecht. Linna^a 2: 228. 1827. 



Potamogeton zizii. Shining pondweed. 



A species closely allied to P. lucens and P. mucronatus. Stems slender, branching; 

 floating leaves elliptic, many-nerved; petioles mostly short; sul)merged leaves mostly 

 lanceolate or ol)lauceolate, thin, acute or cusp'date; stipules obtuse, 2-keeled; pedun- 

 cles thicker than the stem; fruit obliquely obovoid, the face dorsally 3-keeled; style 

 short, blunt, facial. 



This plant was collected by (iaudichaud in the Agana River. The growth of 

 Potamogeton and other water plants is here so vigorous as to check the flow of the 

 river, and it must be cleaned out periodically. 



In rivulo dulcis aquae urbem Agafia in insula Guajan percurrente legit amicissimus 

 Gaudichaud. (Chamisso and Schlechtendal, Linnaea, vol. 2, j). 200, 1827.) 



References: 



Potamogeton zizii Koch; Roth, Enum. PI. Germ. 2: 531. 1827. 



Potat (Philipj)ines). See Barringtonia racemosa. 



Potato, s'weet. See Ipomoea batatas. 



Potato, white oi- Irish. See Solanum tuberosum. 



Premna gaudichaudii. False elder. 



Family \'erbeuaceae. 



Local names. — Ahgao, Ahgap, Ajgao (Guam); Sauco (Spanish). 

 A shrub or small tree with puberulent young branches and flower panicles. Leaves 



«Sonie Chinese vegetable food materials, U. S. Dept. Agr., Off. Exp. Sta. Bull. 

 No. 68, IS.fl. 



^ Firminger, Manual of Gardening for Bengal, ed. 4, p. 151, 1890. 



