Crystallina. — Habit erect to recumbent. Diameter medium. 

 Shape of stalk usually curved. Color varying from shades of greenish- 

 red to straw color, sometimes tinted with violet or purple ; very glau- 

 cous. Internodes varying in length, but averaging about medium ; va- 

 rying also in shape, often tumid on the side opposite the one on which 

 the bud occurs, tj^pically plump, and flattened laterally; furrow me- 

 dium depth. Nodes medium size, typically larger in the upper part; 

 the lower portion a distinctly depressed ring, which is deepest below 

 the bud; the leaf-scar projecting prominently from beneath the bud, 

 but adhering closely to the stalk on the opposite side; rudimentary 

 roots in three or four rows. Buds varying in length and width, usually 

 plump ; typically broadly ovate-acuminate to triangular, with a mar- 

 gin medium to Avide ; sometimes broadly ovate or semi-elliptical ; lobes 

 typically distinct ; may or may not start to expand on the standing 

 cane. Foliage abundant, some of the dry leaves also adhere to the 

 stalk, medium green in color. Leaf medium width, medium length, 

 tapering into a long, acute point. Leaf sheath somewhat flattened 

 laterally at the throat ; auricles medium size ; ligula medium length, 

 with the upper edge rounded in outline, or occasionally slightly de- 

 pressed in the center. Vestiture of leaf sheath a few setae in a line 

 on the back. Vestiture of throat of sheath medium coarse hairs on 

 auricles, adjacent edges and face of the leaf, and sometimes fine hairs 

 on the surface of the base of the leaf. ]\Iost important distinguishing 

 characters color and the form of the internodes and Inids. 



Cavengerie. — Habit erect to reclining. Length medium. Diame- 

 ter medium. Shape of stalk more or less curved. Color dark wine 

 to greenish-red, with faint greenish to bronze longitudinal stripes; 

 tlie lower part of the node more or less glaucous. Internodes nearly 

 round in cross-section, medium to long, typically almost straight- 

 sided, 1)ut sometimes inclined to be tumid in the lower half; often 

 more or less staggered ; furrow very shallow. Nodes small ; the leaf- 

 scar often oblique, usually a slightly prominent ring at the upper limit 

 of the node; the depressed ring forming the portion of the node 

 below narrow and shallow ; two, to occasionally three, rows of I'luli- 

 mentary roots. Buds usually dark in color, typically plump and 

 very short, with the margin scarcely perceptible, and the point i-ouml 

 and obtuse, set in a cavity of the stalk ; but sometimes longer and 

 the point more acute. Foliage abundant, medium green in color. 

 Leaf medium width, medium to short, semi-erect, tapering to a fine 

 point rather abruptly. Leaf-sheath slightly flattened at the throat ; 

 color reddish green, striped with light, longitudinal stripes; auricles 

 small; ligula medium to narrow, turned in toward the stalk, and 



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