’ ;- | > oar 9 ™) 
s i ret an ys? , / 
\ / 
Special Morphology and Classification. 385 
This cohort includes also the following orders :—Hydrophyllacee 
(Hydrophvllum, Nemophila, Eutoca); Polemoniacee (Phlox, Collomia, 
_ Gillia, Polemonium, Cobea); Convolvulacee (Quamoclit, Batatas, Pharobitts, 
Tpomea, Convolvulus, Evolvulus, Porana, Cuscuta); and Borraginea 
(Heliotropium, Cerinthe, Echium, Borrago, Symphytum, Anchusa. 
Lycopsis, Lithospermum, Pulmonaria, Myosotis, Cynoglossum, Onphea- 
lodes). 
Fic. 493.—Flower of tobacco, Fic. 494.—F lower of thorn-apple, Datura 
Nicotiana Tabacum (natural | Stramoniune (natural size). See Fig. 
size). 310, p. 150. 
Cohort LV. GENTIANALES. Corolla gamopetalous or rarely nearly 
apopetalous, hypogynous , stamens same in number as corolla-lobes or 
Cc-€ 
