COFFEE VARIETIES IX PORTO RICO. 13 
turning deep red while that over the convex face of the bean is 
still <rreen. The cherrv is considerablv smaller than the Porto 
Rican. 44 per cent more San Ramon cherries being required to fill 
a liter measure than of Porto Rican grown at Mayaguez. The dif- 
ference in size of bean is less pronounced, the long dimension of San 
Ramon being shorter than that of the Porto Rican. This difference is 
not sufficient to warrant any distinction in picking or marketing, 
however. One thousand moisture-free San Ramon beans were found 
to weigh 86 per cent as much as the Porto Rican (Mayaguez ) . When 
equal measures of the two were compared. San Ramon yielded the 
most marketable coffee. An almud of San Ramon coffee gave the 
highest yield of marketable beans. 5 pounds 11 ounces, the most fa- 
vorable ratio of reduction in weight from cherry to bean. 5.1 to 1, 
and the smallest loss in weight. 15 per cent, through the removal of 
the parchment, of any of the Arabian group tested. ( See Table 1.) 
San Ramon is recommended for trial in exposed situations where 
the typical Arabian coffee does not do so well. Its stocky growth 
facilitates harvesting, but the small size of the beans is a disad- 
vantage in marketing, as large beans sell at better prices. 
In the San Ramon planting at the station two trees are apparently 
crosses between San Ramon and Maragogipe. In form these 
trees are like the San Ramon, having short mternodes and dwarf, 
stocky development, while in size the foliage and fruit closely ap- 
proach Maragogipe. (PL III, fig. 2.) Some of the leaves are in- 
termediate between the two varieties in shape. The bean is fully as 
broad as that of Maragogipe, but somewhat shorter. It is. how- 
ever, considerablv larger than the other Arabian varieties at the sta- 
tion. The fact that this cross embodies a valuable quality from each 
hypothetical parent suggests the advisability of planting a few alter- 
nating rows of each parent in an isolated location and emasculating 
all flowers of San Ramon prior to opening, in order that first genera- 
tion crosses in quantity may be secured with comparatively little 
trouble. 
Mocha. 
A iittle more than 200 years ago practically all the coffee exported 
from Arabia was shipped through the port of Mocha for exporta- 
tion, whence came the name " Mocha coffee." The production of 
genuine Mocha is extremely limited and relatively insignificant in 
quantity, but. owing to the establishment of the name as a trade 
term, considerable quantities of coffee from various sources have been 
sold as Mocha. Mocha coffee brought higher retail prices than any 
other sort on the Xew York market on April 11. 1922. 21 Mocha 
coffee is quite distinct from typical Arabian. Doctor Cramer 22 
suggests that it is "perhaps a distinct species (C. mokrcn." although 
he classes it as a variety of C. arahka. of which usually it is con- 
sidered a subspecies. 
Seed of Mocha coffee was received by the station from Java, and 
in September. 1909. 293 young trees. 12 to 18 inches high and pre- 
sumably 18 to 20 months old. were set in the field. Two years later 
-Prices current: Wholesale and retail. Tea and Coffee Trade Jour., vol. 42. No. 4. 
p. 550. 1 1922. i 
22 Coffees of the Dutch East Indies. Dr. V. J. S. Cramer. Tea aud Coffee Trade Jour.. 
vol. 35. No. 4. p. 321. 
