PLANTS EXOGEN^ COROLLIFLORiE. 291 



c. Seeds affixed at the tip, 



Ulriadus 1-seeded, seed erect STATICINiE. 20. 



Samara 2-seeded ; seed reversed . . FRAXlNEiE. 35. 



d. Seeds parietal. 



Corolla not lipped GENTIANS. 27. 



Corolla lipped GROBANCHIDEiE. 23. 



C. Pericarps many, capsular. 

 Follicles 2 c VINC^. 29. 



Fam. I. 18. PLANTAGINE^. Jussieu. 



Calyx 4-sepaled, persisting; corolla 1-petaled, tubular, 

 scariose, persisting ; limb 4-parted ; stamens 4 ; filaments 

 inserted in the tube, alternate with the cuts, exserted, 

 flaccid; induplicate at the eestivation ; anthers 2-celled; 

 cells opposite, contiguous, opening longitudinally ; ovary 

 sessile, without any girding disk, 2 or 4-celled i ovules pel- 

 tate, solitary or indefinite ; style 1, cdi^moxy, stigma his- 

 pid, undivided ; /)e/7carpiz^?7i a pyxidium ; dissepiment lon- 

 gitudinal, becoming free, seedbearing; seeds sessile, peltate, 

 single or in paii's, or many ; shell mucilaginous ; perisperm 

 fleshy, same shape as the seed ; corculum straight, central, 

 nearly as long as the perisperm ; radicle below ; plumula 

 inconspicuous. — Stem herbaceous, short or scarcely any; 

 hairs simple, jointed ; leaves mostly radical, crowded, stel- 

 late, not cut, or toothed, often flat, and ribbed, sometimes 

 semicylindrical ; scapes axillary; flowers spiked, sessile; 

 brae tea 1 to each flower. 



Ovary 2-celled ; dissepiments flat ; 

 cells many-seeded Plantago. 48. 



Ovary 2-celled ; dissepiments flat ; 

 cells one-seeded Arnoglossum. 49. 



Ovary 3 or 4-celled ; dissepiments 4'sided ; 

 cells one-seeded Asterogeum. 50. 



Gen. I. 48. PLANTAGO. Pliny. Plaintain. 



Corolla 4- cut; anthers oblong; oi-arji' 2-celled ; dissepi- 

 ments flat ; cells many-seeded. — Stem scarcely any ; leaves 

 crowded, radical, flat, ribbed ; scape radical. 



u 2 



