Plants Collected in Paraguay. 1 25 



Jong. Involucral bracts 4-8, lanceolate, striate, spine-tipped, entire, 5-10 

 mm. long, 1-3 mm. broad at the base. Floral bracts much longer than the 

 flowers, similar to the involucral bracts. Heads cylindrical, 10-15 mm. long, 

 (J-IO mm. in diameter. Sepals oblong, apiculate, about 1 mm. long. Petals 

 shorter, white. Stamens about the length of the petals. Styles about 3 mm. 

 long. Not seen in fruit. 



On the campo between Yilla Rica and Escoba (451). January. 



This species resembles E. Glazovianum, Urban, in stem and 

 character of the canline leaves, but is very different in its long 

 racemose inflorescence, in the shape and size of the heads and in 

 its radical leaves. 



Eryngium Sangllisorlia, C. and S., Linnsea, i, 339. Ex descr. 



Near Luque (334). December. = Bala.nsa 1080 a. 



Appears to be one of the forms of this very variable species, 

 judging from the description given by the authors. Stem slender, 

 striate, naked except for a single bract near the centre, about 3 dm. 

 high. Radical leaves linear, 8-12 cm. long, about 6 mm. broad at 

 the sheathing base, 4 mm. above, acute, with small distant, callous 

 or setose teeth about 2 mm. long and usually retrorse. Inflorescence 

 terminal, 3-5 radiate, the rays with solitary heads. Heads dark 

 rosy-purple, ovoid or somewhat cylindrical, 8-12 mm. long, 6-7 

 mm. in diameter. Involucral bracts 6-8, entire, spine-pointed, re- 

 flexed, 1-3 nerved; bracts of the peduncles 1, and of the rays 2, 

 minute, opposite. Among bushes on the open campo. 



Apium Ammi (Jacq.), Urban in Mart. Fl. Bras., xi, pt. 1, 341. 



La Plata, Arg. Republic (29); Asuncion (798). October-Decem- 

 ber. 



ARALIACE^. 

 Didymopanax ? 



Pilcomayo River (997). 



A tree 9-16 m. in height, growing on the open campo. Collected 

 without flowers or fruit. It has a very thick, light, fissured, corky 

 bark, and I thought when gathered that it might prove a substitute 

 for the bark of Quercus suber, but experts in New York inform me 

 that it lacks one of the chief qualities of true bark, namely elasticity, 

 and yet it might be of considerable value in all other respects. The 

 leaves are thick, coriaceous, quinate, on a thick petiole 10-15 cm. 

 in length ; leaflets elliptical, entire, thick, glabrous, granulated on 



