759 
which was planted with pomelos of the 'seed' variety while 
some 25 per cent of the area contained 'seedless' trees. 
The orchard is divided into plats some 7 meters wide by 60 
to 90 meters long, separated by trenches some 3 to 4 
meters wide by two and one-half meters deep. The pomelo 
trees are planted in single rows on these plats. All 
trees are propagated by marcottage, or the 'don' method. 
The soil of this orchard contains about 60 per cent clay. 
The first fruits examined in the 'seedless' section proved 
to be full of seeds. Upon inquiry as to the reason for 
this it was stated that the seedlessness was due to the 
salt deposited from the brackish water which backs up into 
the river during the dry season; the planter also said 
that a coconut shell of salt was placed in the hole at the 
time of transplanting the tree and that another shellful 
was given the tree each year." (Boyle, Philippine Agri- 
cultural Review, February 1914. ) 
Citrus sinensis. (Rutaceae.) 37840. Plants of Laranja 
selecta from Rio de Janeiro, Brazil. Purchased of Eick- 
hoff, Carneiro Leao & Co. "This unusually choice orange 
is one of the two principal varieties grown in the Rio de 
Janeiro district, and has the added distinction of having 
been, as all the evidence indicates, the parent of the 
Bahia navel orange or 'selecta de umbigo,' as it is still 
called, the culture of which in California at the present 
day forms so important an industry. The origin of the 
'selecta' orange is obscure. It has been cultivated in 
Brazil for more than a century, and although it has been 
superseded in Bahia by. its offspring, the navel orange, it 
is still cultivated commercially near Rio de Janeiro, par- 
ticularly in the Sao Goncalo district at Nictheroy. The 
main crop ripens in July, but it commences to come into 
the market in March and continues until October. On the 
fancy fruit stands it brings two or three milrels ($.65 to 
$1.00) per dozen, but in the public market it can be pur- 
chased at a considerably lower price. Around Nictheroy 
the fruit is picked and brought to the market in baskets 
strapped across the backs of mules and horses. While re- 
sembling the Bahia navel orange in general characteristics, 
'selecta is normally oblate in form, contains numerous 
seeds, and does not produce a navel. The typical 'selecta' 
as found in the markets may be described as follows: 
General form roundisn oblate; cross section regularly 
round; size medium large, good specimens being three to 
three and one-half inches in length and three and one- 
fourth to three and one-half inches in breadth; stem some- 
times inserted somewhat obliquely; base usually tapering 
very little, flattened for a distance of one-half to three- 
fourths inch from the stem insertion, sometimes slightly 
