APRIL. 1 TO JUNE 30, 1921, 51 



53454 to 53463— Continued. 



53456. CoFFEA coNGENSis Froehn. 



A tree with fu.scous gray slender branches uud yluljrous subcoriaceous 

 leaves, narrowly oval or elliptic; the fruits are oval. (Adapted from 

 Notizhlatt (Ic.s- Koir'uilichcs Bofdiuschcii Carlcns uiul M n.scinii.s :» Berlin, 

 vol. 1. p. 235. ) 



53457. CoFFKA DEWEVREi WildoHi. and Dur. 



This species requires no shade and sonie plants yield IG kilograms 

 of berries in four months. From plants 34 to OS months old. 8..3 kilo- 

 grams of fresh berries make 1 kilo.LJ:ram of coffee. (Adapted from Iliil- 

 letin Agricole dv Vongo BeUtr, vol. 7. /j. 293.) 



For previous introduction, se:" S. P. I. No. .lOP):]!. 



53458. CoFFEA ExcM.SA Cheval. 



A coffee which thrives from sea level to TOO meters, succeeds well on 

 rather stiff clayey soils, and ia quite drought resistant; it might be 

 grown with an annual rainfall of 1,200 millimeters. It is the most 

 resistant to drought and blight of any coffee, is of strong vigorous 

 growth, nnd pr :)dnces 1 kilogram of coffee from 7 to 8 kilograms of 

 berries. Excclsa makes an excellent stock for other coffees. The first 

 crop is obtained at the age of 4 to 5 years and a full crop at the age of 

 7 to 8 vears. (Adapted from Philippine AgricuJtiirnl Reineiv, vol. 9, 

 p. 121.) ' 



For previous introduction, see S. P. I. No. 5t)032. 



53459. CoFFEA CANEPHORA KOUiLOUENsis Pierre. 



A variety which yields 1 kilogram of coffee from 3.8 kilograms of 

 berries. Tlie small leaves make very tiense shade and prevent the cir- 

 culation of air, two causes which contribute to the development of the 

 coft'ee blight, Hcmilcia rastafrix. (Adapted from .Bulletin Agricole da 

 Congo Beige, vol. 7, p. 20<;.) 



53460. CoFFEA LIBERICA Bull. 



Among the Liberica types, Coffea liberica is the only one that has 

 attaine;! connncrcial ir.'.portance. V/hen first imported to .Tava this 

 coffee was resistant to the blight and it was extensively planted; dur- 

 ing recent years, however, a strain of the Hemileiu has developed which 

 so severely injures the I>i!);>rifa that its cultivation has practically been 

 abandoned. The yield averages 600 to 700 kilograms of coffee per 

 hectare. 



To produce 1 kilogram of marketable coffee, 10 kilograms of berries 

 are requiied. The Liberii-a colfee has a large, liard berry which requii'es 

 a special pulper. The Lil>erica coffee an 1 all other closely allied varie- 

 ties or species prefer low altitudes, from sea level to an altitude of 350 

 meters. All the coffees of this type succeed well even on ratlu>r .stiff 

 clayey soils and are quite di'ouglit resistant. (A(l;;pted from I'liiUppine 

 Agricultural licrieir. vol. !). p. 121.) 



For ])revious introduction, see S. P. I. No. •51482. 



53461 and 53452. Coffea eai'kentii ^\■ill!em. 

 {(J. rohn.sta Hort. ) 



This variety was discovered in 1898 in the Kongo by Emile Laurent. 

 One of the chief features of this new variety seems to be its immunity 

 against disease. The plant grows very rapidly, and after eight months 

 shows its first flowers. A small harvest is ol)tained in the .second year, 

 and the maximum production is reached in the fourth or fifth year. 

 Clusters are numerous and contain 50 to CO berries, which require 10 

 months to ripen. To make 1 kilogram of marketable coffee, kilograms 

 of the red berries are required. 



The following are the yields per hectare of two plantations of C. 

 rohu'ita in Java, one of exliausted and one of virgin soil: Exliausted 

 soil, second year, very little; third year, 485 kilograms; fourth year, 

 <506 kilograms ; fifth year, 1,000 kilograms. Virgin .soil, second year, little ; 

 third year, 550 k.Iograms; fourth year, 1,057 kilograms. Trees properly 



