616 cxii. LABIATE. (J. D. Hooker.) [_Plectranthm, 



8. PlfECTRAXTTIZUS, L'Serit. 



Herbs or underehrubs. Flowers usually Bmall, in lax (rarely close) 

 panioled or racemed 6^-fld. cymes (whorls). Calyx 5-toothed, 2-Upped, 

 enlarged in iruit. Corolla-tuhe exserted, long or short, straight or decurved, 

 limb equal or gibbous or spurred, 2-lipped ; upper lip usually short, broad, 

 3-4-fid recurved ; lower much longer, entire, boat-shaped, narrow at the base 

 or stipitate. Stamens 4, declinate; filaments simple, free; anther-cells 

 usually confluent. Disc usually produced in front, and there equalling or 

 exceeding the ovary. Style subequally 2-fid. Nutlets orbicalar, ovoid or 

 oblong, smooth, granulate or punctate. — Species about 80, Tropical and Sub- 

 tropical Asiatic, African, Australian and Polynesian. 



The species of the sections ISODON and Coieoides are numerous and very 

 difficult of discrimination, and the latter should perhaps be referred to Coleus, or better 

 still refer all the Plecira/nthi to sections of Coleus, of which genus P. coleoides and 

 urticifolius have all the habit. 



Sect. 1. Xsodon. Fruiting calyx decurved, subequally 5-toothed, or 

 2-lipped, upper lip 3-toothed, lower 2-toothed. Nutlets oblong or rounded, 

 obtuse. 



* Fruiting calyx hroad, open, deeply '2-lipped, upper lip very broad with 

 3 distant spinous teeth, lower of % long subulate teeth. Corolla 1 in. long, 

 tube straight, base equal. 



1. P. macranthus, SjioTc. f. ; sparsely hairy, leaves petioled ovate- 

 lanceolate coarsely serrate, inflorfescence racemose, flowers opposite. 



SiKKiM Himalaya ; Chola, alt. 6-8000 ft., J. 2>. S. Khasia Mts., alt. 5-6000 ft. ; 

 Lobl, J. D. M. ^ T. T., &c. Buema; Chiffith. 



Stem 6-12 in., simple or branched, weak. Leaves 3-5 in., membranous. Racemes 

 fi-12 in. ; bracts ovate-lanceolate, persistent : pedicels \ in. Corolla-tube straight, 

 1 in. long, J in. diam. ; lips short, subeqaal, rounded. Pruiting calyx i in. long. 

 Nutlets globose, ^s in. diam. — Very near the Japanese P. longitubus, Miq,, and possibly 

 a variety of it, but the cyme branches are much shorter and 1-fld. ; the inflores- 

 cence being a simple raceme with opposite flowers. — Probably both should be referred 

 to Orthosiphon. 



** Fruiting calyx longer than broad, distinctly 2-lipped for J way down, 

 upper lip subequally Z-toothed, lower ^-toothed. Corolla ^— J in. long, tube 

 straight, base equal. (It is not easy to distinguish this section from the 

 next.) 



2. P. scrophularoldes, Wall. PI. As. Bar. ii. 16, and Gat. 2738 ; tall, 

 slender, nearly glabrous, leaves long-petioled ovate crenate, base cordate or 

 cuneate, corolla-tube broad about twice as long as the lower lip, fruiting 

 calyx with obtuse teeth, nutlets subglobose smooth. Senth. Lab. 40, and in 

 DC. Frodr. xi. 55 ; Hook. Ic. Fl. t. 464 in part. 



Tempeeate Himalaya, alt. 8-1000 ft., from Kumaon to Sikkim ; Wallich, &c. 



S^em 2-4 ft. or more, ieaue* 3-7 in., often as broad, sparsely minutely hairy j 

 petiole 1-4 in. Cymes in broad open slender panicles. Corolla j in., pale rose, tube 

 nearly straight, upper lip very short, lower short, narrow, acute, hardly cymbiform. 

 Stamens far exserted. Pruiting calyx \ in.— .4 much larger plant than P. Qerardi- 

 anus, which it closely resembles. The figure in Icones Plantarum (copied from a 

 drawing by Heyland of Paris) is, I suspect, made up of the magnified calyx and corolla 

 of this, but of the leaves, panicle and nutlets of P. Gerardianus. 



