APPENDIX. 



3 a. Nopalea gaumeri sp. nov. (See page 37, ante.) 



About 3 meters high, much branched; joints small, linear-oblong or oblong-oblanceolate, 6 to 

 12 cm. long, 2 to 3 cm. broad, rather thin; areoles small, i to 2 cm. apart; spines very unequal, 5 

 to 20 mm. long, acicular, 4 to 12, yellowish when young; flower small, including ovary and stamens 

 about 4 cm. long; sepals ovate, acute; petals oblong, 12 mm. long; stamens long-exserted ; style 

 longer than the stamens; stigma-lobes 6, greenish; fruit red, darker within, obovoid, 3 cm. long, its 

 numerous areoles bearing spines and yellow glochids; umbilicus prominent, i cm. deep; seeds about 



4 mm. broad, with a very narrow margin and a very thin testa. 



FIGS. 277 and 278. Nopalea gaumeri. Xo.8. 



Collected by George F. Gaumer and sons near Sisal, Yucatan, March 1916 (No. 23250, 

 type); also by Dr. Gaumer from Port Silam, 1895 (No. 647). 



Dr. Gaumer's field note is as follows: "A coastal cactus, 10 feet high, much branched, 

 small-jointed and of slight build, not of robust build like the interior species. It blooms from 

 February to June. The birds are very fond of the fruit and consume it as fast as it ripens." 



Figures 277 and 278 show joints of the type-specimen. 



77 a. Opuntiadepauperata sp.nov. (See page 101, ante.) 



Plant i to 2 dm. high, with a flattened, much 

 branched top; joints dark green, readily detached, 

 terete or slightly flattened, 3 to 12 cm. long, 2 to 3 

 cm. thick, puberulent; spines on young joints 2 or 3, 

 on old joints sometimes 6 at each areole, reddish to 

 pale brown, acicular, i to 2.5 cm. long, nearly porrect; 

 glochids tardily developing, conspicuous on old joints, 

 yellow; ovary with a deep umbilicus. 



Collected by Dr. and Mrs. J. N. Rose north of 

 the station of Zig Zag, along the railroad above 

 Caracas, Venezuela, October 17, 1916 (No. 21751). 



This little cactus is very inconspicuous and 

 only a few specimens were observed. The station 

 is near the top of the mountains which separate 

 the valley, in which Caracas lies, from the sea. 

 The region here is not so dry as it is farther down on 

 the seaward side of the mountains, but there are 

 several other species of cacti associated with it. 



Figure 279 is from a photograph of type plant 

 taken by Mrs. Rose; figure 280 shows a joint. 



A plant, apparently of this relationship, was collected by Dr. H. H. Rusby in 1917 on 

 granite rocks, narrows of Magdalena River, Colombia. The joints, however, are glabrous, 

 only 2 to 3 cm. long, the young joints have numerous brown spines and the young areoles 

 produce long white wool. 



216 



FIG. 279. Opuntia depauperata. 



