Rusby: An Enumeration of South American Plants 125 



PLANTAGINACEAE. 



Plantago litorea Phil. Fl. Atac. 46. Sorata, 1 0000 ft., Feb., 

 1886 (no. 2607). 



Plantago tomcntosa Lam. Illustr. I: 340. Vic. La Paz, iooco 



ft, April, 1885 (no. 666), Yungas, 4000 ft, 1885 (no. 667) and (?), 



Unduavi, 8000 ft, Oct., 1885 (no. 665). 



Plantago major L. Sp. PI. 112. Yungas, 6000 ft., 1885 (no, 

 668). 



NYCTAGINACEAE 



Oxybaphus bracteosas Griseb. in Goelt. Abh. 19:86. 1874. 

 Yungas, 4000 ft., 1885 (no. 2688). 



Oxybaphus micranthus Choisy in DC. Prod. 13: 432. Vic. 

 La Paz, 10000 ft., April, 1885 (no. 2868). 



Boerhaavia viscosa Tag. & Rod. Anal. Cienc. Nat. 4: 256, no. 

 12. Yungas, 6000 ft, 1885 (no. 906). 



Boerhaavia crecta L. Sp. PL 3. June, of Rivers Beni and Madre 

 de Dios, Aug., 1886 (no. 904). 



Collignoma parviflora (H.B.K.) Endl. Gen. 311. Unduavi, 

 8000 ft, Oct, 1885 (no. 2706), and Sorata, 10000 ft., Feb., 1886 

 (no. 2705). The same as Mandon's no. 1007. The plant climbs, 

 by reclining, to the height of 8 or 10 ft. in hedges. Its white 

 bracts render it both conspicuous and handsome. 



Pisonia hirtella H.B.K. Nov. Gen. et Sp. 2: 217. Mapiri, 

 25000 ft, May, 1886 (no. 2500). The same as Mandon's no. 



1009. 



Pisonia Boliviana Britton, sp. nov. 



Younger portions, inflorescence, petioles, etc., sparsely ferru- 

 ginous-pubescent ; branchlets short, weak, flexuous, spreading or 

 recurved, leafy at the summit: petioles .5-1 cm. long, broad: 

 blades .6—1.5 cm - long, 3-8 cm. broad, oval, varying to ovate or 

 obovate, inaequilateral, abruptly or cuneately narrowed at the 

 base, shortly and obtusely abrupt-pointed at the apex, entire, 

 dark-green above, pale underneath, rather thin, the 8-10 pairs of 

 slender, straight principal secondaries diverging nearly at right 

 angles, connecting near the margin, alternating with lesser ones : 

 peduncles about 1 cm. long, weak : panicles 1 or 2 cm. long and 

 broad, loosely branched : flowers sub-se.^ ile : bracts whitish, 

 thickish, 1 mm. long, oval-ovate, obtuse, strongly ciliate : peri- 



