704 cxii. LABIATE. (J. D. Hooker.) \_Ajuga. 



*** Corolla inflated at the base, geniculate above the swelling. Stamens 

 exserted. 



5. A. macrosperma, Wall. Cat. 2030 ; glabrous pubescent or villous, 

 stem or branches decumbent or ascending often stout and tall, leaves 

 petioled ovate-oblong or obovate obtuse sinuate-crenate, whorls villous 

 continuous or interrupted longer than the ovate bracts, calyx-teeth very 

 short obtuse. JBenth. in Wall. PL As. Ear. i. 58, Lab. 697, and in DC. 

 Prodr. xii. 599 ; Maxim, in Bull. Acad. Imp. Sc. Petersb., Mel. Biol. xi. 

 823. A. repens, Boscb. Fl. Led. iii. 3. A. g-eniculata, Maxim. I. c. 821. 



TEOPTCAL and TEMPERATE HIMALAYA, from J-'uninou to Bhotan, alt. 1-8000 ft. 

 KHASIA MTS., alt. 1-5000 ft. CHITTAGONG, PEGU. DISTKIB. Ava. 



Very variable ; stems or branches 6 in. to 3 ft., sometimes as thick as a swan's 

 quill, spreading and branching, sometimes rooting, and glabrous or densely pubescent 

 or villous. Leaves 1-6 in. long, very variable in breadth, narrowed into the often 

 very long petiole, rarely lobed or cut. Spikes 1-8 in., whorls continuous or interrupted^ 

 lower bracts leaf-like. Calyx short, teeth always obtuse. Corolla azure, tube twice 

 as long as the calyx, usually glabrous, limb small ; upper lip erect, 2-lobed ; lobes of 

 lower subequal or midlobe broadest. Nutlets ^-^ in. long, deeply rugosely pitted. 

 A very common species in the hilly countries of N. India, being the largest of the 

 genus ; in the low grounds forming a bushy herb sometimes 3 feet high, with widely 

 spreading decumbent branches and abundant spikes of blue flowers. In the higher 

 elevations it assumes a lower and more slender form with smaller leaves (A. sikkim- 

 ensis, Miq.), with the corolla laxly hairy and its tube scarcely exserted. This form 

 has sometimes stems only a few inches high and irregularly toothed leaves. Whether 

 A. macrosperma, and any of its states, be the A. decumbens, Thunb., of Japan, as 

 would follow from Don's and Bentham's references, is unknown to me, as I have seen 

 no Japanese Ajuga with a geniculate corolla-tube. According to Maximovicz's descrip- 

 tion of A. decumbens, it must differ in the deeper sharper calyx-lobes, the more 

 prominent midlobe of the corolla, and in the minutely reticulate nutlets. 



VAE. Thomsoni ; glabrous, stems slender flaccid rooting prostrate, spikes with a 

 very slender rachis, calyx-teeth very short rounded, corolla glabrous, tube exserted. 

 A. Thomsoni, Maxim. I. c. 821. Sikkim, alt. 6-9000 ft., J. D. H. Sf T. T. This is 

 certainly only an upland state of A. macrosperma. However unlike the extreme 

 low-land form, it is united by intermediates collected near to it at lower 

 elevations. 



VAE. breviflora ; smaller, branches more slender than the type 4 in.-2 ft., 

 corolla-tube shorter sometimes quite included often hairy. A. decumbens, Don 

 Prodr. 108; JBenth. in DC. 1. c. 598 (? of Thunberg}. A. sikkimensis, Miq. 

 Prolus. Fl. Jap. 46; Maxim. I. c. 822. Higher parts of the Khasia Mts., 

 ascending to 10,000 ft. in Sikkim. Behar; top of Parusnath, J. D. H. Perhaps 

 all the Himalayan forms of A. macrosperma should be referred to this, but I can find 

 no definite characters for them. 



UNKNOWN SPECIES. 



A. ? OTATA, Wall. Cat. 2036, from Ava, is indeterminable, having no flower 

 or fruit. 



55. CY1MARIA, Senth. 



Shrubs. Flowers small, in lax many-fld. axillary peduncled cymes, 

 ebracteate or crowded in a terminal thyrse. Calyx erect, 10-nerved, 

 5-toothed, fruiting-tube globose, throat naked. Corolla-tube straight; lips 

 subequal, upper arched, erect; lower spreading, 3-fid, midlobe largest. 

 Stamens 4, ascending ; anthers conniving, cells divaricate. Disk sym- 

 metric. Ovary shortly 4-lobed ; upper style-lobe very short. Nutlets 

 snbglobose or obovoid, rugosely pitted ; hilum lateral. Species 3, Burman 

 and Malayan. 



