LABIATE. (MINT FAMILY.) 661 



1. T. rosmarinifolium. 



1 1 Leaves dentate or 2'xii'ted. Nutlets prui nose or hairij. 

 \ Filaments exserted. 



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



I I Filaments nearly included. 

 6. T. parviflorum. 



* * Perennials. Flowers sparingly or irregularly whorlcd, arranged in a 

 simple spike. Calyx campamdate^ bilabiate, loitli upper tooth broader. 



7 T. lamiifolium. 



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



somewhat gibbous at base, icith nearly equal teeth. 



8 T. Scordium. 



* * * * Perennails. Flowers 2-3 in each eymule of the axillary, pedxmcledy 



2-d-b7'anched cymes. Calyx-teeth nearly equal. 



9 T. Auraniticum. 



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



at base, the loioer 4 teeth spiny, the upper much broader. 



10 T. spinosum. 



****** Perennials. Whorls 2-jtowered, in ovate-oblong spikes, or short 

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



11 T. poederotoides, 12 Montbretii. 



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

 subgibbous at base, with nearly equal, lanceolate teeth. 



13 T. Chamcedrys, ,14. flavum, 15 Socinianum, 16 coniortoides. 



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



heads. 



17 T. leucocladum, 18 Polium, 19 Sinaicum. 



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

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

 at lower, reyolute-margined, .01 to .03 long, the lov^est 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 — I\Iay to Sep- 

 tember — Coast and mountains to 1500 m. 



2. T. muUicanlc, Montbr. ct Audi. 5 .25, much branched, 

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

 Qearly simple, ending in a loose raceme. Leaves linear, efitire, .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 

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

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

 lastward. 



