106. LABIATM. [25. Ajuga. 



A. Corolla-tube widely cylindrical then suddenly bent or genicu- 



late :— 



L. usually serrate. Calyx-lobes obtuse. Lateral lobes of 

 lower cor.-lip nearly as long as terminal .... \. macrosperma. 



B . Corolla-tube globose round the ovary or nutlets, then narrowed, 



straight. Calyx-lobes lanceolate : — 



Spikes terminating in a woolly tip without conspicuous 



bracts. Cor.-tube shortly exserted 2. densiflora. 



Spikes terminating in long foliaceous bracts. Cor.-tube 



sometimes twice the calyx 3. bracteosa. 



1. A. macrosperma, Wall. 



Stems 1-2 ft. long procumbent and often rooting, terete, shortly 

 appressed-hairy or hairs thin spreading. Leaves elliptic or ovate 

 with tapering base 2-6" long including the petiole Avhich is 'S-l'S" 

 (passing gradually into leaf base), coarsely usually doubly or unequally 

 obtvisely or subacutely serrate, rarely crenate membranous. Flowers 

 •27-"28" long (to tip of upper cor.-lip) and -16 --17" wide (to tip of 

 lower lip). Calyx '22" long, lobed not quite to middle, lobes rounded 

 or obtvise, lower slightly longer. Corolla scarcely or not exserted 

 with broadly tubular base to some distance above the ovary then 

 suddenly humped and bent forward, lower lip with obdeltoid 

 scarcely emarginate midlobe not miich longer than the side lobes. 



Growing in shady beds of nalas. Near Purneah ! Singbhum ! Parasnath ! 

 F]., Fr. Jan.-March'. 



Stems usually villous towards inflorescence, usually grooved. Leaves shortly 

 thinly hairy both sides, subobtLise. Spikes 3-9", at first very dense, subsequently 

 interrupted, bracts oblong reflexed, lower foliaceous, upper inconspicuous. Calyx 

 thinly hairy, delicately 10-nerved. Corolla hairy and glandular, azure blue or 

 violet, upper lip with two short oblong lobes. Stamens decurved then erect, 

 exserted. Nutlets oblong, nearly •!" long and about half as broad, rugose and 

 reticulate when dry. 



2. A. densiflora, Wall. Syn. A. bracteosa, var. densiflora, F.B.I. 

 Stems decumbent and ascending 6"-l ft. high from a very woody 



rootstock, obtusely 4-sided, with dense spreading pubescence. Leaves 

 mostly elliptic-oblong, 3-6', base usually somewhat tapering, repandly 

 or sinuately dentate or lobulate or subentire, lower petioles •2--3'', 

 upper leaves often sessile. Flowers •25-"27''' long to tip of upper lip 

 (or nearly 'o" if measured to lower lip) and '25" wide (to tip of lower 

 lip). Calyx •18--2" long, lobed halfway, lobes lanceolate acuminate. 

 Corolla slightly exserted, base globose round the ovary or fruit but 

 contracted immediately above them and tube straight or only 

 slightly bent ; lower lip with broadly obovate 2-lobed midlobe '2--25" 

 broad and '25" long, side-lobes oblong shorter inclined forward. 



Moist places. Higher hills of Chota Nagpur. Neterhatl Fl., Fr. May-Oct. 

 Bettiah (see next species)? 



Stoloniferous from the woody stock. Whole plant often with a purple tint. 

 Indumentum said to be variable. Leaves in our area velvety or pubescent 

 beneath especially on the nerves, sparsely hairy (gradually glabrescent) above, 

 tip rounded. Spikes 3-8", at first very dense, lower whorls finally discrete, dense 

 bracts '4i-'5" or lower foliaceous, upper rhomboid pubescent and hairy. Calyx 

 campanulate, hairj% rather membranous and indistinctly nerved, often pink. 

 Corolla sparsely hairy outside, pink, or white with pink veins, upper lip short 

 erect 2-lobed or subentire. Stamens exserted, tip of filaments incurved. Nutlets 

 globose-oblong, 'OS-' 1" long and nearly as broad, smooth and shining when fresh, 

 rugose and pitted when dry. 



753 



