BIGXONIACE^E 



339 



Catalpa Kaempferi, Sieb. et Zucc. (fig. 571). 



Primary root normal, tapering, flexuose, and abundantly fur- 

 nished with lateral rootlets, 

 erect, 



Hypocotyl woody, 

 terete, finely pubescent, pur- 

 plish, 1-2 cm. above the soil. 



Cotyledons deeply bipar- 

 tite, with rotund, entire, di- 

 varicate segments ; petiole 

 somewhat flattened horizon- 

 tally, or slightly convex on 

 both surfaces, shallowly 

 grooved above, finely pubes- 

 cent ; lamina glabrous, 7 mm. 

 long, 13 mm. from tip to tip 

 of the lobes. 



Stem woody, erect, terete, 

 finely pubescent, pale green 

 or tinged with purple ; 1st 

 internode 11'5 mm. long ; 2nd 

 8'5 mm. 



Leaves simple, cauline, op- 

 posite, orverticillate in whorls 

 of three, exstipulate, petiolate, 

 pubescent above, at the mar- 

 gins and on the nerves be- 

 neath or all over, three- to 

 five-nerved at the base (the 

 two anterior of the basal four 

 much the stronger and run- 

 ning into the side lobes of the 

 leaf in the adult plant), rather 

 dark green above, and stained 

 with purple when unfolding, 

 paler beneath ; petioles of the 

 first pair slightly grooved 

 above, of the second pair flat- 

 tened above, of the third pair 

 terete or subterete, pubescent 

 of the adult leaves terete or 

 sometimes slightly channelled 

 on the upper half. 



PIG. 571. Catalpa Kcempferi. 

 Half nat. size. 



