is applied to a sudden increase in size, or an offset. The furrow is 

 a channel sometimes extending up from the point of attachment of 

 the bud, for all, or a part, of the length of the internode. Barbate 

 signifies bearing hairs, or bristles, in a tuft, like a beard. Barbellate 

 means beset with short, stiff hairs. The term margin is applied to 

 the flattened edge of the bud, formed by the edges of the outside scales. 

 Lobes are expanded areas of the lower part of the margin.. Buds are 

 described as prominent when they project from the stalk, depressed 

 when the point is turned down upon the stalk, and appressed when 

 flattened against it. The throat of the leaf-sheath is the region 

 adjacent to the place where it joins the blade. The ligula is a mem- 

 branaceous appendage of the leaf-sheath, extending up from the 

 point of union of the sheath and blade. The auricles are lateral 

 appendages of the leaf-sheath, just below the point of union with 

 the leaf. Setae are hairs, or bristles, usually rigid and sharp pointed, 

 but sometimes soft, which are often, but not always, found on the 

 back of the leaf-sheath. The term vestiture applies to the setae 

 or hairs occurring on the leaf-sheath or at its throat. 



DESCRIPTION OF VARIETIES. 



Following are descriptions of some of the cane varieties which 

 have been under trial at this Station. The purpose is to show the 

 application of a method used in identifying and describing varieties, 

 as well as to give descriptions of some of the most important kinds 

 in Porto Rico. The names by which they are known here may be 

 different, in some cases, from their original names, as many of them 

 came to us indirectly. The descriptions apply to the canes known by 

 these names on this Island. 



Otaheite. — Habit erect to reclining. Length medium. Diameter 

 medium to large. Shape of stalk curved. Color greenish yellow, 

 a glaucous ring on the lower half of the node. Internodes varying 

 much in shape; typically rather tumid, but sometimes with sides 

 straight, and when tumid most so on the side opposite to the one 

 which bears the bud; somewhat flattened, usually more or less stag- 

 gered : furrows medium to shallow. Xodes medium size, longest 

 on the bud side; leaf-scar set more or loss obli(|ue and projecting 

 somewluit prominently from beneath the bud ; tlie portion above the 

 leaf-scar about the same diameter as the internode above, except 

 when the latter is tumid: the depressed ring, forming tlie portion 

 below shallow : rudimentary roots in two or three rows. Buds tyi)i- 

 cally sub-eliptical to ovate in outline but varying in si/e and in rela- 



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