THE COEOLLA. 



55 



274; Bugloss, fig. 265); campanulate (c. campanulata), when bell-shaped (Campanula, 

 fig. 275) ; urceolate (c. urceolata), when the tube is swollen in the middle, and the 

 mouth contracted, like a small pitcher (Heath, fig. 276) ; 



277. Pimpernel. 

 Flower. 



278. Lamium. 

 Flower in profile. 



281. Bosemary. 



Labiate corolla with upper 



lip upright. 



279. Lamium. 



Front view of 



flower. 



280. Galoobdolon. 



Front view of 



flower. 



rotate (c. rotata), when the tube is suppressed, and the segments horizontal, 

 and divergent like the spokes of a wheel (Pimpernel, fig. 277; Borage, fig. 267) ; 

 stellate (c. stellata), when rotate, with the seg.rn.ents very acute (Galium). 



The irregular monopetalous corolla is bilabiate (c. labiata, bilabiata), when the 

 limb is cut into two principal superimposed divisions (lips), and the throat is open ; 

 the upper lip consisting of two petals, and the lower of three. The upper lip may 

 be entire, by the confluence of the two petals (Lamium, figs. -278, 279 ; Galeobdolon, 

 fig. 280) ; or slightly split (Sage, Rosemary, fig. 281) ; or so deeply divided (Ger- 

 mander, figs. 282, 283) that the two petals stand widely apart, and are confluent 

 with the lower lip rather than with one another. In this case the corolla appears 

 to consist of one five-lobed lower lip. Lastly, the upper lip is sometimes wholly 

 suppressed, or distinguishable from the tube only by a notch (Bugle, fig. 284). The 

 mid-lobe of the lower lip maybe entire (Rosemary, fig. 281); bifid (Lamium, fig. 

 279; Bugle, fig. 284) ;trifid (Galeobdolon, fig. 280). 



The personate corolla (c. personata) is a form of the labiate, with the throat 

 closed by a projection of the lower lip, called the palate 

 (palatum) ; in many personate corollas the tube is tumid at the 



282. Germander. 

 Back of flower. 



283. Germander. 

 Flower in profile. 



284. Bngle. 

 Labiate corolla with upper lip almost obsolete. 



280. Snapdragon. 

 Flower. 



base in the direction of the lower lip. and called gibbous (c. gibbosa, Snapdragon, 

 fig. 285), or even spurred (c. calcarata, Linaria, fig. 286). 



Two-lipped corollas are often described as ringent (c. ringens}, but this term 

 being equally applied to both the labiate and personate corollas, it is superfluous. 



