CITRUS FRUITS IN THE PHILIPPINES. 13 



yellow, 2 to 4 centimeters in diameter; skin smooth, thin, brittle, separable 

 from the flesh; pulp orange colored, juicy, acid, with distinct aroma; juice 

 cells rather large, short, and blunt; seeds comparatively large, smooth, 

 plump, sometimes beaked; polyembryonic. 



The calamondin is widely distributed in the Philippines and 

 occurs wild as well as cultivated. The plant makes an attrac- 

 tive, ornamental, small tree and the fruit may be made into 

 marmalade or utilized in making ade. There are no particularly 

 distinct forms of this species. The trees are almost invariably 

 very prolific and almost everbearing. In Bohol the species is 

 known as "limoncito." 



B. A. No. 2332 (Tanauan, Batangas). 



Citrus webberii. ALSEM. 



A shrubby tree with small, sharp spines; leaves averaging 95 milli- 

 meters in length, and 32 millimeters in width, oblong-ovate, crenulate, dark 

 green and shining above; base broadly acute; apex emarginate, petiole 27 

 millimeters long; wings rarely exceeding 12 millimeters in width; flowers 

 terminal, rarely axillary, solitary, 20 millimeters in diameter, sweet scented; 

 calyx small; petals white, reflexed; stamens 19 to 21, about equal; fila- 

 ments united into groups of several; ovary small, obovoid, 7 to 11 loculed; 

 style distinct, slender; stigma small, club shaped; fruit sometimes attaining 

 a weight of 165 grams, form oblate, 58 millimeters long to 65 millimeters 

 long to 66 across, to roundish oblate, sometimes compressed and wrinkled 

 toward base ending in a pronounced nipple; apex a shallow depression, or 

 mammilate with the circular depression more or less pronounced; surface 

 smooth to fairly smooth; color greenish yellow to lemon yellow, lenticels 

 few, depressed; skin thin, the "kid-glove" character more 'or less pro- 

 nounced; flesh whitish to grayish, very juicy, aromatic; juice cells variable, 

 from short and blunt to medium slender and tapering to one end; seeds 

 ovate, flattened, smooth, sometimes beaked. 



Plants of the alsem have never been seen by the writer in 

 the provinces, the description of the plant having been made 

 from budded plants growing at Lamao, propagated from ma- 

 terial collected in Bulacan. The trees have a long flowering 

 season, as fruits are offered in Manila throughout the summer 

 to late in autumn. The variation in the fruit is very great, 

 some being of little value, while others are extremely thin skin- 

 ned, well flavored, juicy, aromatic, with less rag than perhaps 

 any citrus fruit that has been examined by the writer. The 

 floral characters correspond closely to those of the mandarin, 

 which the fruit in some forms also resembles in appearance 

 and in its loose-skinned character. Flavor and aroma place 

 the alsem in close relationship with the cabuyao, C. histrix, and 

 it is a curious fact that the Tagalogs always call it "cabuyao." 

 In common with the cabuyao it is frequently infested with the 



