LABIAT^E. (mint FAMILY.) (361 



1. T. rosmarinifolium. 



1 1 Leaves dentate or parted. Nutlets prulnose or hairy. 

 \ Filaments exserted. 



2 T, multicaule, 3 Orientale, 4 pruinosum, 5 procerura. 



\ X Filaments nearly included. 

 6. T. parviflorum. 



* * Perennials. Floiuers sparingly or irregularly icliorled, arranged in a 

 simple spiJce. Calyx campanulate, bilabiate, with upper tooth broader. 



7 T. lamiifolmm. 



* * * Perennials. Whorls 2-Q-jiowered, axillary, distant. Calyx oblique^ 



somewhat gibbous at base, loith nearly equal teeth. 



8 T. Scordium. 



* * * * Peremiails. Flowers 2-3 in each cymule of the axillary^ peduncled^ 



2-Z-branched cymes. Calyx-teeth nearly equal. 



9 T. Auraniticum. 



***** Annuals. Whorls 2-4:-Jiowered, axillary, distant. Calyx gibbous 

 at base, the loioer 4 teeth sp)iny, the upper much broader. 



10 T. spinosum. 



****** Perennials. Whon^ls 'i-jlowered, in ovate-oblong spiles, or short 

 racemes. Upper calyx-teeth 3, ovate to oblong, the lower 2 narrower. 



11 T. pasderotoides, 12 Montbretii. 



******* Perennials. Whorls 2-id-Jiowered, in a loose raceme. Calyx 

 subgibbous at base, with nearly equal, lanceolate teeth. 



13 T. Chamoedrys, 14 flavum, 15 Socinianum, 36 coniortoides. 



********* Perennials. Whorls in globular to ovate-oblong terminal 



heads. 



17 T. leucocladum, 18 Polium, 19 Sinaicum. 



1. T. rosmarmifolium, Lam. 5 .5 to .8; branches stiff, canes- 

 cent, with long internodes. Leaves green at upper surface, canescent 

 at lower, revolute-margined, .01 to .03 long, the lowest elliptical-linear, 

 the others linear, the floral shorter than flowers. Flowers opposite, 

 forming loose spikes; pedicels hardly as long as calyx, the lowest 

 sometimes 2-3-flowered ; calyx campanulate, teeth triangular-lanceo- 

 late ; corolla bluish-purple, about twice as long as calyx — May to Sep- 

 tember — Coast and mountains to 1500 m. 



2. T. multicaule, Montbr. et Auch. 5 .25, much branched, 

 the newer parts hirtulous, pale green ; branches erect, stiff, leafy, 

 nearly simple, ending in a loose raceme. Leaves linear, entire, .015 to 

 .03 long, or tripartite to near middle into linear lobes, usually with revo- 

 lute margins, the lower floral longer, the upper shorter than flowers. 

 Peduncles longer than calyx, or as long or shorter ; calyx-lobes twice 

 as long as tube, linear, tapering to a spiny tip ; corolla blue, nearly 

 twice as long as calyx — May and June — Aintab to Marash, and north- 

 eastward. 



