CITRUS FRUITS IN THE PHILIPPINES. 9 



of citrus fruits and budwood from Bohol and Cebu, and for his 

 most valuable assistance during a collection trip made by him 

 and the writer to Cebu and Bohol in May, 1914, without which 

 it would not have been possible to obtain much of the data and 

 material collected. All the species and varieties credited to 

 Bohol were first called to the attention of the Bureau by Mr. 

 Southwick. Mr. G. W. Weathersbee, formerly agricultural in- 

 spector of this Bureau, first called attention to the alemow and 

 has also assisted in the collection of citrus material in Cebu. 

 Mr. A. M. Burton, formerly superintendent of the Trinidad 

 garden, Benguet, has forwarded fruits and budwood of the 

 cabugao and other fruits. Mr. D. B. Mackie, entomologist of 

 the Bureau, first called attention to a variety of alsem in Bontoc 

 of superior quality. M. G. B. Mead sent the first specimens 

 of Panuban. 



DESCRIPTIONS AND COMMENTS. 

 Citrus aurantium L. ORANGE. 



A tree 7.5 to 12 meters in height, with a compact, conical head; bark 

 grayish brown; thorns generally present, 12 to 50 millimeters long, sharp, 

 stout; leaves oval or ovate oblong, 7.5 to 10 centimeters long, smooth, 

 shining, somewhat lighter below than above, margins entire, or very slightly 

 serrate; petiole 12 to 25 millimeters long, slightly winged (occasionally 

 with quite a broad wing) ; flowers axillary in clusters of one to six, white, 

 sweet scented, smaller than those of C. vulgaris; calyx cupped; sepals four 

 to five, awl-shaped, thick, greenish, persistent; petals usually five, oblong, 

 25 to 31 millimeters long, thick, fleshy, recurved; stamens twenty to twenty- 

 five, hypogenous, filaments flattened, united in groups, shorter than the 

 petals; pistil distinctly divided into stigma, style and ovary; stigma knob- 

 like; style long and slender; ovary rounded, 10 to 14 loculed; fruit globose 

 to oblate, light orange to reddish; rind smooth; pulp juicy, subacid; juice 

 sacs spindle shaped, sometimes larger than those of C. vulgaris; seeds 

 few or many, oblong ovoid, planoconvex, generally broad, wedged or pointed 

 at the micropylar end, marked with oblique ridges surrounding one or two 

 plain areas. Native to China or Cochin China. 



While the orange is nowhere planted in orchards it is fairly 

 well distributed. Judging from the prevalence of the citrus 

 fruits in the markets in the various parts of the Archipelago 

 it ranks fifth in production, as compared with the mandarin, 

 pomelo, lime, and calamondin, the only citrus fruits beside the 

 orange that may claim to be of any economic importance even 

 from a Philippine point of view. Excepting a few budded trees 

 of recent importation or distribution by the Bureau of Agricul- 

 ture all trees are seedlings and nearly always the fruit is poor 

 in quality. 



So far as noted, there are no variations worthy of notice. 



