590 LABlAT^t;. 



Hyssoi'us officinams, Liiiii., the Hyssoi» of the OKI World, which has sparingly eacai»ctl from 

 ganlens to roadsides at the East, has once been received from riiuuas Co., California; hut prob- 

 ably it is not there naturalized. 



Nki'ETA Catauia, Linn., tlie Catnip, and perhaps N. Gi.kchoma, Bentli., the Grounti Ivy, 

 also Gai.koi'sis Ti;riiAniT, l.inn., the llemp-Netlie, LEoNiiiuis Caudiaca &. L. SimKicu.s, 

 Linn., Motherwort, and I.amium a.mi'I.kxhaiii.k, Linn., &c., Doad-Nottle, — weeds from lim Ohl 

 World, — are to be e.\peclid in California, but apparently have not yet found their way thither. 



1. Nutlets not reticulated, (juite distinct and attached at the very base : corolla not more deeply 

 cleft down the upper side. 



Tkibk I. OCBIOIDE.K. Stamens declined towards or resting upon the lower lip of the 

 corolla, nil four fertile. Corolla declined, the -1 somewhat e([Ual lobes forming the upper 

 lip, and the liftli dissimilar one the lower. {Ocimuia JJasiiicam, Linn., the Sweet liasil, 

 cultivated as a sweet herb, is the type of this tribe.) 



L Hyptia. Calyx 5-toothe-l. Lower lobe of the corolla saccate, abruptly deflexod at the base. 



Tkibe 1L SATUREIEiE. Stamens erect or ascending ; the })osterior pair shorter or wanting : 

 anthers 2-celled, and the short cells never far separated, sometimes partly conlluent but not 

 blended. Upper lip of the corolla never hooded : all the lobes fiat or flattish. 



♦ Corolla (small and short) about equally 4-lohed and calyx 4 - 5-toothed : tube naked within. 



2. Mentha. Stamens 4, nearly equal, erect, straight and distant. 



3. Lycopus. Stamens "2 with anthers : the posterior pair sterile or wanting. 



* * Corolla with border bilabiate, and no hairy ring within the base of the tube. 

 +- Calyx about cipially fj-toothed and 13-nerved: style heardle-ss. 



4. Pycnanthemum. Flowers glomerate-capitate. Stamens 4, straight, distant and divergent : 



anther-cells parallel. Corolla-lips and lobes short. 



5. Monardella. E lowers glomerate-capitate. Stamens 4, straight, exserted : anther-cells at 



length divergent. Corolla-lobes narrow. 



6. Micromeria. E lowers solitary or loosely clustered in the axils. Stamens 4, curving and 



ascending, shorter than corolla. 



-t- -t- Calyx distinctly bilabiate : style beardless. 



7. Calamintha. Flowers scaiterwl or loosely clustero.l. Stamens 4, the shorter pair sometimes 



sterile, conniving in pair.s or ascending jiarallel. 



+■ -t- +■ Calyx uncipuilly and deeply 5-cleft, mostly L'i-norved; style bearded above. 



8. Pogogyne. Stamens 4, sometimes the up2)er pair steiile, ascending. 



» ♦ » Corolla not manifestly bilabiate : a hairy ring at the base of the tube within. 



9. Spbacele. Calyx campanulate, deeply and nearly equally 5-toothed, membranaceous and 



enlarging in fruit, oidy 10-nerved, reticmlated. Stamens 4, distant. Corolla with 

 5 roundish lobes, the lower longest. 



TiuiiK III. MONAKDE-E. Stamens only 2 ftrtiie, the niiper pair rmlimentary or wanting : 

 ant hers uppartiitly or really of a singh' liniuir-idjlong ceil, or of 2 cells very widely sepa- 

 rated upon the two ends of a lihiment-liko connective. 



10. Salvia. Connective longer than the fdament itself, which it strides, a narrow anther-cell at 



its upper end, a smallei' one or a long process at the lower. 



11. Audibertria. Connective much shorter than the filiform filament and continuous or barely 



articulated with its apex, or apparently none : anther 1-celled, no rudiment of the second 

 cell below. 



Tkibe IV. NEPETEili. Stamens all four with good anthers, ascending or divergent ; the 

 posterior pair surpassing the anterior. Corolla distinctly bilabiate : calyx 15-nerved. 

 (Nki'ETA, the type of this tribe, would be expected to give two European weeds, the Cat- 

 nip and Ground Ivy ; but they have not yet been seen in collections.) 



12. Lophanthus. Calyx 15-nerved, 5-tootlied. Stamens divergtmt, the jjairs crossing : anther- 



cells parallel. 



Tkibe V. STACIIYDIJ/E. Stamens all 4 witli good anthers, ascending and parallel under 

 the concave or galeate upi)'jr lip of the corolla. Calyx 5 -10-nerved. Herbage much less 

 aromatic than in the i)reccding tribes, the glandular dots or oil-glands scanty. 



♦ Anthers of the lonj^er jjair of stamens with one cell abortiv(! or wanting, as also is the uj)])er 

 fork of the stylo : embryo curved ; the short radicle resting against one of the cotyledons : 



