CLASS V. ORDER 1. 23 



cylindric, throat open, divisions of corol emargin- 

 ate : capsule 1 -celled with a 10-cleft mouth : stig- 

 ma globular. 21. 34 — vulgaris^ (primrose) scape 1- 

 flowered. 1|1. — veris^ (cowslip) scape many-flow- 

 ered. 71. 



HoTTONiA. Corol salver-form : stamens on the 

 tube of the corol : stigma globular. 21. SA-^-fwlus-' 

 trisy (feather-leaf) flowers whorled. %. 



I — ' Differ from the above in having 2-celled 



cafisules. 



Spigelia. Corol funnel-form :' twin capsules 4- 

 'valved, 2-celled: stigma simple : seeds many. 47. 

 46 — marilandicay (pink-root) leaves lance-ovate^ 

 sessile, opposite. 1^. p. 



Convolvulus. Corol funnel-form, plaited : 

 stigma 2-cleft or double : cells of the capsule 2 or 

 3 ; each 2-seeded. 29. 43 — sepium, (morning glo- 

 ry) hind lobes of the arrow-form leaf truncate. %^ 

 p. w. — stans, stem erect. %. w. — batatas, (sweet 

 potatoe) leaves heart-halbert-form. %. p. w. — iri' 

 Color, leaves lance-ovate. (2). 



Datura. Calyx tubular, angled, caducous 2' 

 corol funnel-form, plaited: capsule 4-valved, 4-cell- 

 ed, smooth or thorny. 28. 41 — stramoniuvi^ (thorn- 

 apple) pericarp spinous. <^. w. b. 



NicoTiANA. Corol funnel-form, limb plaited : 

 stigma notched : stamens inclined : capsules 2- 

 celled, 2-valved. 28: 41 — tabacum^ (tobacco) leaves 

 decurrent. 0. p. 



Verbascum. Corol wheel-form, somewhat ir- 

 regular; stamens declined, hairy : capsules 2- cell- 

 ed, 2-valved; valves inflexed : many-seeded. 28. 

 41 — thafisus, (mullein) leaves decurrent. Q). y. 

 — blattaria^ (cockroach mullein) leaves clasping. 

 %.y. 



Chironia. Calyx somewhat bell-form : corol 

 C 2 



