228 USEFUL PLANTS OB' GUAM. 



ical moans with an instrnnient calli'd i\\v rnidlt' <) plt/itea. Tliis i.s formed likeasancer, 

 the l>ottom of wliirh is lovi-rotl witli sharj) projections an<l is deepened at its center 

 into a tul)e, so that it has the shape of a funnel with its tube closed at the end. The 

 jteel is held in the hand and rnhbed ovi'r the i)iris, liy whiili the oil vessels of the 

 entire surface are punctured; tlu' liberated oil collects in the tube, and is emptied 

 from time to time into another vessel, where it may be. easily separated from the 

 liquid accompanying it.« 



In Guam the natives use the fruit only as a hair wa.sh. It does not produce a 

 lather like the bitter orange, but cleanses the hair, which is afterwards Avashed thor- 

 oughly with water, and imparts to it a pleasant fragrance. The tree has spread all 

 over the island and is common along the roadsides and at the edge of the woods. 

 References: 



Citrus hergamia Wight tt Arn. Prod. 98. 18.34. 



Ciirus anrnntium hergamia Duliam. Arb. ed. nov. 7: 98. t. 26. f. 3. 1819. 



Citrus decumana. Shaddock. 



Local names. — Lalanha, Lalafigha (Guam); I\Ioli tonga (Samoa); Lucban, 



Lulsa (Philippines); Pompelmoes (Dutch); Pomplemousse (French); Pum- 



melo (Brit. India). 

 The shaddock may possibly be a variety of the orange & instead of a distinct species. 

 It grows to the size of a tree. Young shoots pubescent; leaflets large, ovate-oblong, 

 frequently emarginate and pubescent beneath; petiole broadly winged; flowers 

 large, white; fruit large, pale yellow, globose or pyriform; rind thick; pulp [)ale, 

 yellow-pink or red, usually sweet, sometimes acid, the vesicles distinct, easily sepa- 

 rable from one another. 



In Guam several varieties of shaddocks are to be found, varying in size and shape 

 and in the color of the pulp. ■ The natives make little or no use of them. They are 

 eaten by Europeans, but their flavor is not especially good. Some of the varieties 

 have a very thick skin like that of the citron, and are called "cidra," or "setla" 

 by the natives. One variety has pink pulp. They are all inferior to the thin- 

 skinned forms sold in our markets as "grape-fruit" and "pomelos," which do not 

 occur in Guam. This fruit owes its common English name to Captain Shaddock, 

 who introduced it into the West Indies from China. 

 References: 



Citrus decumana (L. ) Murr. Syst. ed. 13. 580. 1774. 



Citrus aurantium grandis L. Sp. PI. 2: 738. 1753. 



Citrus aurantium decum,ana L. Sp. PL ed. 2. 2: 1101. 1763. 



Citrus hystrix acida. Lime. 



Local names. — Limon (Guam); Dalayap (Philippines); Tipolo (Samoa); Lima 

 (Ceylon); Lemon Nipis (Malayan). 



A shrub or small tree with elliptic-oblong or oval leaflet, petiole winged, many 

 times sliorter than the leaflet; flowers white, fragrant, often 4-petaled; fruit usually 

 small, globose or ovoid, yellow, with pale, sour pulp. Considered by Hooker c to be 

 a variety of Citrus medica, and by Englerc' to be a subspecies of C. hystrix. In Guam 

 the fruit is small and always globose, never having the terminal nipple characteristic 

 of the lemons on the island. 



The lime is especially well adapted for hedges. It grows readily either from seed 

 or from cuttings. It sends up stout vertical shoots from the roots and forms dense 

 thickets if left undistui'bed. It produces continuously in Guam, the bushes bearing 

 both flowers and fruit at the same time The fruit is the principal source of the well- 

 known lime juice of commerce. In Guam it is very common. The natives use it 



o See Spons' Encydoppedia, p. 1457, 1882. 



'' Bonavia, Cultivated Oranges and Lemons, p. 223, 1890. 



'Flora, British India, vol. i, )). 515, 1872. 



t^Engler and Prautl,Die .Xatiirlichen Pflanzenfamilien, Theil 3, Abt.4, p. 200, 1897. 



