250 58. LABIATE. 



Tribe I. MENTHOIDEM. Cor. bellshaped, nearly regular. 

 Stam. distant, straight, diverging upwards. 



1. Mentha. Cor. 4-fid, tube very short. Cal. equal, 5- 

 toothed. Stam. 4 ; anth. -cells parallel. 



2. Lycopds. Cor. 4-fid, scarcely longer than the equal 6- 

 toothed calj'X. Stam. 2 ; anther-cells parallel or ultimately 

 divergent; 2 upper stam. or rudimentary, or rarely perfect. 



Tr. II. MONARDEJE. Cor. 2-hpped. Stam. 2, fertile, par- 

 allel under the upper lip of the corolla. 



3. Salvia. Two upper stam. wanting or rudimentary ; fila- 

 ments with 2 diverging branches, one bearing a perfect antli.- 

 cell, the other barren. Cor. ringent. Cal. tubular, 2-lipped. 



Tt.IU. SATUREIINEjE. Cor. 2-lipped. Stam. 4, distant ; 

 cells of anth. separate, divergent ; connective dilated. 



4. Origanum. Stam. divergent; connective subtriangular. 

 Upper lip of cor. straight, nearly flat ; lower patent, 3-fid. 

 Cat. with 5 equal teeth and 10 — 13 veins; throat hairy. 

 Spikes 4-sided, resembUng catkins, imbricated with bracts. 



5. Thymus. Tips of stam. patent. Anth. -cells at iirst nearly 

 parallel, afterwards divergent ; connective subtriangulai'. 

 Upper lip of cor. straight, nearly flat ; lower patent, 3-fid. 

 Cal. 2-Uppeds,Tii 10 — 13-veined; throat hairy. Fl. whorled, 

 axillary or spiked. 



6. Calamintha. Tips of stam. connivent under the upper 

 lip of the corolla. Anth. -cells at length divergent; con- 

 nective subtriangular. Upper Up of cor. straight, nearly flat ; 

 lower patent, 3-fid. Cal. 2-lipped. 



[Tr. IV. MELISSINEJE. Cor. 2-lipped. Stam. distant; anth.- 

 cells connected above. 



7. Melissa. Tips of stam. connivent under the upper lip 

 of the cor. Anth. -cells divergent. Upper lip of cor. con- 

 cave ; lower patent, 3-fid. Cal. 2-lipped ; upper lip flat, 

 with 3 teeth, the lateral teeth folded at their midrib.] 



Tr. V. SCUTELLARIEJE. Stam. approaching, parallel under 

 the upper lip of the cor. Cal. 2-l)pped, closed in fruit. 



8. Scutellaria. Tips of stam. incurved. Filaments simple. 

 Anth. of the 2 longer and inferior stam. l-celled, of the 

 shorter and superior 2-celled. Cor. 2-lipped, upper lip con- 

 cave. Cal. ultimately closed and compressed ; lips entire, 

 upper one with a concave scale on its back. 



