<; 



3I0KPH0L0GY. 



to 



appearance often described 



crenate 



A 



truly crenate margin (P. Collettii) is 



exceedingly rare. 



3 is 



ged 



The d 



not enlarged at all in many species, but in the 



g 



moiety it is 



slightly 



ly 



This 



largement is 



not as a rule 



nspicuous 



> 



one 



Ind 



pecies (P 



it projects as an almost vertical process f 



long 



to quite as 



the completely cleft caly 



the 



ary 



i 



and protrudes in front bet 



the 



though in 

 two-thirds 



of 



margins 



The corolla consists of a tube, sometimes of uniform calibre but usually expanded 



upwards, whereon 

 lip (labium) below 



prolonged or no * 



stamens 

 d a con 



nserted. The limbus is divided into a patent 3-fid 

 pressed hood (galea) enclosing the style and stamens and 



EUPHRASIES. 



where the lip 



into a beak (rostrum) abo 

 he midlobe of the lip is o 



e. Its aestivation is that characteristic of the 

 termost in the bud, the hood is inmost, and 



■ere 



h to cover the hood completely, the left lateral lobe over- 



laps the right. The beak, when pr 



is somewhat 



,bly disposed. The tube, some 



times even short 



th 



the caly 



lly equ 



or somewhat exceeds it, and at times 



in most Sipiionantile and some Rhyncholopile) it is 



long 



d slender and much 



» xceeds the 



and lip, as 



to elongate 



caly 



veil 



is late of development, the hood 



Even when ultimately longest it 

 the anthers and ovary, attaining almost their full size before it beg 



In young buds of all species the filaments are 



erted cl 



to the ba 



and where no great elongation takes pi 



inal 



tion is not 



ied 



any great 



distance up the tube, very frequently only to a point opposite the top of the ovary 



d 



fe 



(P. Kingii) not quite so f 



The same condit 



is met wirh in those 



takes 



cases where the elongation of the tube 



staminal insertion and the limbus (P. corymbosa, pectinata, g 



chiefly in the portion bet 



th 



e 



Whe 



on th 



oth 



d. the 



uniform throughout the tube we obtain the 



dition most usual 



among ObthOBBOTNCELS (but 

 the middle of the tube, w 



hile 



very common in other sections) of staminal insertion in 



in 



tl 



cases wher 



the 



elongation 



bet 



the staminal insertion and the base of the tube we obt 



tl 



akes 



staminal insertion 



at the top of the tube — a condition that characterises the Siphonanth^e. 



The amount of elongation varies considerably, as the subjoined table shows, and 



diagnostic character, but the portion that elongates 



does not therefore afford a reliable 



is always the same, and therefore supplies a character of the greatest value. 







