CITRUS CULTURE IN HAWAII 



29 



given considerable information on methods of propagation, cul- 

 tivation, irrigation, and pruning, use of fertilizers and of cover 

 crops, season of fruiting, and yields, pollination and seed-pro- 

 ducing habits, varietal studies under Hawaiian conditions, and 

 insect and plant-disease control. It has also furnished abundance 

 of material for propagation experiments and cooperative experi- 

 ments with interested growers in many parts of the Territory. 



Triumph 



The original tree of the Triumph grew in the grounds of the 

 Orange Grove Hotel, Tampa, Florida. As a variety it has been 

 propagated vegetatively since 1884. Trees of the variety grow- 

 ing at the station were propagated from bud wood obtained from 

 Florida in 1906. 



Fruit — Form, globose to oblate, slightly flattened at base and apex ; greatest diameter, 

 3% to 4 inches; stem, small'; color, light yellow; rind, % to % inch thick; surface, smooth; 

 oil cells, comparatively large; sections, 11; pulp sacs, coarse, juicy, and of pleasing flavor; 

 seeds, 30 to 40, rather small and partly winged. 



Marsh 



The original tree of the Marsh or the Marsh Seedless was a 

 seedling growing at Lakeland, Florida, whence it was introduced 

 as a variety by C. M. Marsh about 1896. The fruit is particu- 

 larly desirable on acount of its good quality and comparatively 

 seedless habit. The variety was introduced into Hawaii by the 

 station in 1906. 



Fruit — Form, oblate to roundish; greatest diameter, 3% to 4^ inches; stem, small; light 

 yellow ; rind, % to 3/16 inch thick ; surface, smooth ; oil cells, small ; sections, 11 to 13 ; 

 pulp sacs, grayish green, small, and juicy ; acidity, medium, with slight trace of bitter 

 principle ; central pith often open ; usually seedless, seed when present varying from 1 to 

 6, short and plump. 



Royal 



The original tree of the Royal was introduced into Florida 

 from Cuba about 1875. It was propagated vegetatively and in 

 1891 was named as a variety by the late E. N. Reasoner, of On- 

 eco, Florida. The Royal was introduced into Hawaii by the sta- 

 tion in 1906. 



Fruit — Form, globose to slightly oblate; greatest diameter, about 3% inches; stem, stout; 

 rind, light yellow, % inch thick ; oil cells, small ; sections, 10 to 12 ; pulp sacs, gray-green, 

 juicy ; flavor, good, the acidity and sweetness blending well and the bitter principle is 

 almost lacking ; seeds, 40, of medium size. 



Duncan 



The Duncan, a variety of unusually good quality, was origin- 

 ated by A. L. Duncan, of Dunedin, Florida. Propagating material 

 of the variety was obtained by the Hawaii station in 1906. It 

 fruits well under Hawaiian conditions and the fruit averages 

 large. 



Fruit — Form, oblate or globose ; greatest diameter, 4 to 4% inches ; stem, stout ; apex, 

 slightly scarred ; rind, % to 3/16 inch thick ; oil cells, numerous and sunken ; surface, 

 greenish yellow ; sections, 12 to 14 ; juice sacs, large, closely packed, light grayish green ; 

 flavor, good, with acidity and sweetness blended ; bitter principle well marked ; seeds, about 

 40, varying in size and in shape. 



Imperial 



In Hawaii the Imperial is sometimes called the Whitney Im- 

 perial. The trees are said to be vigorous and prolific. Those 

 at the station have suffered badly from gum disease, but tend 

 to bear abundant fruit of good quality. Bud wood of the variety 



