520 D. Prain — More additional species of Labiataa. [No. 2, 



7. ORTHOSIPHON Benth. 



* * Calyx-throat naked ; stamens included. 

 6. Orthosiphon rubicdndus Benth. 



Var. ? macrocarpa var. nov. ; leaves petioled, lamina very large 

 25-30 em. long. 12-16 cm. across, calyx in fruit 15 mm. long, 7 mm. 

 wide ; petioles 5-7 cm. long. 



Burma ; Attaran, Brandis 856 ! 



This is almost certainly specifically distinct, though it is evidently most nearly 

 related to 0. rubicundus var. rigida. The flowers in the specimens seen are not 

 good and it is inadvisable for the present to give the plant a specific status. The 

 writer feels inclined to restore to var. 'rigida the specific rank claimed for it by 

 Hamilton. 



* * * Calyx-throat naked ; stamens far exserted. 



96. Orthosiphon "Wattii Prain; leafy-stem pubernlous 4-angled 

 short, tlie portion above leaves elongated, glabrescent subterete ; leaves 

 decussately paired, pairs 4, the lowest small usually evanescent the 

 second pair very large long-petioled much exceeding the 2 upper pairs, 

 lamina irregularly cordate with subacuminate apex aud irregularly 

 crenate-serrate and acutely lobed margin, rather thick, sparsely puberu- 

 lous above with adpressed brown hairs, beneath more faintly puberu- 

 lous only along the nerves, racemes simple or snbpaniculate at tlie end 

 of leafless stem, bracts broadly cordate-acuminate, in young inflorescences 

 overlapping to form a narrow strobilate spike, much exceeding pedicels ; 

 calyx puberulous campanulate, 2 lower teeth subulate ; corolla-tube 

 slender not twice as long as calyx, lower lip concave, upper 3-fid., fila- 

 ments naked 2| times as long as corolla ; nutlets not seen. Orthosi- 

 phon sp. Prain, Joum. As. Sue. Bev.g. lix. 2. 296. 



Assam; Manipur, Watt n. 7188! Naga Hills, at Konoma, Watt n. 

 11558! 



RootstocTc woody; leafy stem 6-10 cm. long with short branches in the axils of 

 the 3 upper pairs of leaves, internodes about 15-4 cm., petioles of the large pair of 

 leaves 8-10 cm., laminae 45 cm. long, 30 cm. across, of other pairs much smaller ^ 

 stem between leaves and flowers 20-25 cm. long ; racemes simple terminal 6-10 cm. 

 long or with 1-2 pairs of similar lateral racemes in axils of larger bracts at intervals 

 of 1-3 cm. below base of terminal raceme ; whorls 6-fld., only "05 cm. apart, bracts 

 7 mm. long, 8'5 mm. wide, puberulous externally, glabrous above, margins not 

 ciliate, pedicels 1 mm. long ; calyx 5 mm. long ; corolla tube 7-9 mm. long uniformly 

 pubescent externally as are the lips, filaments inserted below apex of tube, 25 mm. 

 long, stigma clavate subcapitate slightly notched. 



Dr. Watt, who originally collected this very fine species, has again met with it 

 in the Naga Hills and has presented an excellent flowering specimen to the Cal- 

 cutta Herbarium from which it has been possible at last to make a complete des- 

 cription of the plant. 



