580 



ON SEEDLINGS 



with long, hyaline, bulbous-rooted stinging hairs, alternately and 

 ascendingly penninerved, ultimately pinnatifid or bipinnatifid, with 

 the ultimate segments similarly veined, and the nerves running 

 directly into the teeth ; petioles semiterete, channelled above, glan- 

 dular-pubescent and setose with stinging hairs, dilated and amplexi- 

 caul at the base. 



First pair broadly ovate, obtuse, slightly dentate or entire, with a 

 distinct midrib and one or two lateral ascending nerves on each side. 



Second pair much larger, triangular, obtuse, crenate, with more 

 numerous nerves, and glandular, mucronate teeth. 



Third pair lyrately pinnatifid or pinnatisect with three segments ; 



FIG. 871. Loasa lateritia. Nat. size. 



lateral segments unequally ovate, obtuse, crenate -dentate ; terminal 

 segment much larger, rhomboid-obtuse, crenate-dentate and often 

 subtrifid ; teeth mucronate. 



Fourth pair lyrately pinnatisect, with three or more, generally 

 five, segments ; lateral segments ovate, obtuse, obtusely and mucro- 

 nately dentate, more or less petiolate ; terminal segment larger, 

 lobed or pinnatifid and mucronately dentate. 



In L. papaverifolia, H. B. et K., the hypocotyl is erect, terete, 

 finely pubescent, and 1-5-2-5 cm. long. 



The cotyledons are broadly ovate, obtuse, slightly emarginate, 

 petiolate, and finely pubescent. 



