March 27, 1915] Two Hundred Twenty Six New Spkciks— II 2851 



cm to 2 dm high or rather long, usually curved, quite 

 slender, glabrous, blackish brown when dry, taking roots 

 from the lower leaf joints. Leaves alternatingly scattered 

 from below the middle of the stem or frequently from near 

 the bise, diverse in size, horizontal and spreading over the 

 rock surface, also succulent, much paler green beneath, very 

 deep green on the upper side except the relatively pale or 

 yellowish green region along the veins or nerves, curing 

 unequally green on the 2 sides, obovate and falcate or very 

 unequally sided, broadly cuneate or obtusely rounded toward 

 the oblique base, broadly rounded at the apex or terminated 

 by a blunt tooth, upper margin straight and entire except 

 a few blunt teeth toward the apex and terminating at the 

 base a few mm above the lower side, the broader or lower 

 side much curved and usually coarsely dentate from the 

 middle to the apex, sessile, 2 to 4 cm long though occasion- 

 ally only 1 cm long , 1.75 to 2.5 cm wide a trifle above 

 the middle or at the widest portion, the basal ones usually 

 much reduced, cystoliths beneath scattering and obscure, 

 chalky white and raised on the upper side especially 

 crowded along the edges; veins 3, the stoutest or middle one 

 curved and extending into the apex, the lateral pair of 

 veins arising from near the base, the upper one straight 

 and 2 mm below the edge of the lamina, the lower one 

 curved and interarching with the lateral nerves of the mid- 

 vein above the middle and along its lower side; reticulations 

 coarse or merely branched, few, dark brown on the lower 

 side and light green on the upper side in the dry state; 

 stipule oblong, subhyaline, glabrous, 1 cm long or less, 

 deciduous. Male flowers pale green and upon similarly 

 colored slender stalks; female flowers in smaller sessile axil- 

 lary clusters which have a hoary appearance; peduncle 1.5 

 cm long, glabrous, green and purplish streaked; involucre 7 

 mm long, the 4 or more segments forming a broad cup; 

 bracts erect, broadly ovate or elliptic, 4 mm wide, hyaline 

 except the midrib and the basal region which is green and 

 purplish spotted, the broad marginal sides clearly transparent 

 except the midrib which is usually purplish marked, very 

 unequal in size, 4 or more, 3 mm long for the average 

 ones to 2 mm wide, oblong, broad at at the apex, free; 



