252 LAMIACEAE. 



fully 1.5 mm. long. Common, in dry fields and on roadsides. WILD- 



BERGAMOT. 



17. HEDEOMA Pers. Annual or perennial, often diffuse herbs. Leaf- 

 blades entire or sparingly toothed. Flowers in remote or contiguous axillary 

 cymes. Calyx 2-lipped, sometimes obscurely so: lobes of the upper lip broader 

 and shorter than those of the lower lip. Corolla 2-lipped: upper lip some- 

 times notched : lower lip 3-lobed, commonly broader than the lateral ones. Sta- 

 mens 2, accompanied by 2 more or less reduced ones. One stigma obsolete. 

 . MOCK-PENNYROYAL. 



1. H. pulegioides (L.) Pers. Plants very fragrant: stems 1-4 dm. tall, finely 

 pubescent: leaf -blades oval-elliptic to oblong, 9-20 mm. long, sparingly ser- 

 rate: calyx becoming 4-5 mm. long; tube strongly ribbed: corolla 4-5 mm. 

 long, bluish. Common, in dry fields and open woods. Sum. PENNYROYAL. 

 AMERICAN-PENNYROYAL. 



18. MELISSA [Tourn.] L. Perennial, erect herbs. Leaf-blades broad, 

 toothed. Flowers in axillary clusters. Calyx 2-lipped, the broad upper lip 

 with 3 minute lobes, the 2 lobes of the lower lip slender. Corolla 2-lipped: 

 upper lip mostly notched: lower lip 3-lobed, the middle lobe very broad. 

 Stamens 4, exserted. BALM. 



1. M. officinalis L. Plant lemon-scented, 3-9 dm. tall: leaf -blades ovate to 

 ovate-oblong, 2-8 cm. long, crenate-serrate : calyx ringent, 7-8 mm. long; 

 upper lip curved upward: corolla white or cream-colored, about 10 mm. long: 

 nutlets fully 1.5 mm. long. Common, on roadsides and in waste places. Nat. 

 of Eu. Sum. BEE-BALM. LEMON-BALM. 



19. SATUBEIA [Tourn.] L. Annual or perennial herbs, or partially 

 woody plants. Leaf -blades mostly entire. Cymes axillary or in terminal spike- 

 like panicles. Calyx campanulate, slightly 2-lipped, the lobes of the upper lip 

 slightly broader than those of the lower. Corolla 2-lipped: upper lip notched: 

 lower lip with 3 broad lobes. Stamens 4 : stigmas short. SAVORY. 



1. S. hortensis L. Plants 1-4 dm. tall, the branches minutely pubescent: 

 leaf -blades linear-spatulate to linear, 1-2.5 cm. long, entire: inflorescence with 

 spreading bracts similar to the upper leaves but smaller: panicles short: 

 calyx 2.5-3.5 mm. long; lobes lanceolate or subulate-lanceolate, about as long 

 as the tube: corolla white to deep-pink, 3-4 mm. long, the lobes rounded or 

 retuse: nutlets fully 1 mm. long. M. Occasional, in waste places and on 

 roadsides. Nat. of Eu. Sum. SUMMER- SAVORY. 



20. CLINOPODITJM L. Annual or perennial herbs or woody plants. 

 Leaf -blades entire or toothed. 'Flowers in sessile or peduncled axillary cymes. 

 Calyx cylindric or tubular, 2-lipped, the upper lip with 3 short lobes, the lower 

 lip with 2 long, narrow lobes. Corolla 2-lipped: upper lip sometimes notched: 

 lower lip 3-lobed. Stamens 4: anthers awnless. 



1. C. vulgare L. Stems 1-5 dm. tall, hirsute : blades of the upper leaves ovate 

 to ovate-lanceolate, 1-4 cm. long, undulate or crenate: calyx becoming 8-9 

 mm. long, villous-hirsute : corolla white or purple, 11-13 mm. long; middle 

 lobe of the lower lip broadened upward : nutlets about 1 mm. long. Com- 

 mon, in thickets and open places. Sum. BASIL. 



21. ORIGANUM [Tourn.] L. Perennial herbs, or partially woody plants. 

 Leaf-blades broad, often notched. Cymes mostly borne in corymbs. Calyx 



