372 APPENDIX. [Aip. 



Calyx gamosepalous ; tube narrowly funnel-shaped {infund- 

 ibuUforni) ; limb quadripartite, segments imbricate, entire, 

 subequal in length, submembranous. 



Petals three (one posterior, two lateral), oblong or obovate- 

 oblong, subequal, equalling or but slightly exceeding the calyx, 

 narrowed to the base or shortly clawed ; two anterior petals 

 minute subulate or squamiform. 



Stamens three, anterior, alternating with minute or obsolete 

 staminodes ; Jilaments connate nearly half their length ; anthers 

 oblong, versatile. 



Pistil apocarpous, monogynous ; ova7y stipitate ; style rather 

 short, equalling the stamens ; stigma terminal obtuse, slightly 

 thickened ; ovules eight, ten, or more. 



Fruit an oblong or linear-oblong, subterete or slightly com- 

 pressed, curved or nearly straight indehiscent legume ; outer 

 layer of pericarp thinly crustaceous rugulose or nearly smooth, 

 inner pulpy, fibrous, enveloping the seeds. 



Seeds roundish or obovate, compressed, with a thick shining 

 testa, each side marked with ,i large faintly-defined areole ; 

 albumen o. 



GARDEN ZINNIA: Zinnia elegans. 

 Class, Dicotyledons. Division, Corolliflora^. 



An annual herb, with opposite entire leaves and terminal 

 solitar>^ heads of orange, scarlet, purple, rose, or white florets. 



Root annual, slender, tapering, giving off numerous win', 

 fibrous branches. 



Stem erect, one and a half to four feet high, simple, or 

 with one or two pairs of opposite ascending branches, terete, 

 sparsely hirsute. 



Leaves cauline, opposite or subopposite, sessile, amplexicaul, 

 ovate-oblong or ovate-elliptical, base cordate, apex acute or 

 broadly pointed, entire, minutely setulose, scabrid or glabrescent, 

 membranous, three- to five-nerved, the lateral nerves evanescent 

 above ; exstipulate. 



