Colquhounia] LXXXIII. LABIAT.E 517 



wards. Khasi hills, Man i pur. Upper Burma. Branehlets and 1. clothed with stellate 



hairs, in some forms (C. vestita) white tomentose, calyx-teeth triangular, hairs on 

 corolla often glandular at the tip, wing of nutlets more or less laciniate, shorter than 

 seed. 2. C. elegans, Wall. Manipur. Martaban hills 4-5,000 ft. Upper Burma. 

 Yunnan. Branehlets and 1. slightly pubescent with simple hairs, calyx-teeth 

 acuminate, hairs on corolla of 2-3 cells, not glandular at tip, wing of nutlets entire, 

 as long as seed. 



Order LXXXIV. NYCTAGINACE^. Gen. PI. iii. 1. 



(Nyctaginex.) 



Mostly herbs, a few genera of shrubs and trees. L. usually opposite, stip. 0. 

 Fl. often involucrate, perianth gamopetalous, the lower portion persistent, 

 enclosing the fr. Stamens hypogynous, filaments as a rule connate at base, 

 usually unequal. Ovary free, more or less oblique, 1-celled, ovule one, basal. 

 Fr. dry, indehiscent, radicle inferior, albumen soft or mealy. 



The woody species of the three Orders : Nyctagvnacem, A marantacece and Chenopodiacece 

 have an anomalous structure. The vascular bundles remain distinct and are arranged 

 in more or less interrupted concentric belts, separated by interfascicular prosenchy- 

 matic (rarely parenchymatic) tissue. A number of vascular bundles are frequently 

 found in the pith. In some cases, as in Haloxylon, the interfascicular tissue consists 

 of sclerotic fibres, giving the appearance on a transverse section of concentric hard 

 horny layers, alternating with interrupted bauds of softer tissue with groups of 

 vessels. 



BougainvillEea spectabilis, Willd. Commonly grown in gardens. A large scrambling, 

 more or less thorny shrub of South America, 1. alternate, fl. in threes, perianth cyliudric 

 each fl. adnate to a large purple bract. 



PISONIA, Linn.: Fl. Brit. Ind. iv. 710. 



Trees or shrubs, 1. usually entire and opposite. Fl. in corymbose cymes 

 with minute bracteoles, usually dioicous. Perianth 5-10-toothed, stamens 

 6-10, exserted. Fr. more or less 5-angled, cotyledons convolute, enclosing the 

 scanty soft albumen. Species 40, tropics of both hemispheres. 



A. Armed. 



1. P. aculeata, I. inn. : Wight Ic. t. 1763-4; Bedd. Manual t. 22. Western Peninsula, 

 often forming impenetrable thickets. Andamans and Tenasserim, near the coast. 

 Ceylon. Sea coast, tropics of both hemispheres. A large straggling or climbing shrub, 

 young shoots and inflorescence pubescent, armed with sharp axillary more or less 

 curved thorns. L. glabrous, blade 2-3, petiole J-J in. long. Fl. greenish-white in 

 compact sometimes paniculate axillary cymes. Fr. on 1 ■ • 1 1 j_r slender |«'dicels, nblong, 

 blunt, pubescent, A.-g in. long, faintly 5-angled, with 5 double lines of viscid 

 protuberances. 



B. Unarmed. 



2. P. alba, Spauoghe.— Syn. T. morindafolia, R. Br.; Wight to. t. 1765. Beach 

 forests of the Andamans. Malay Archip. < > f t • ■ 1 1 grown in gardens (Me Lettuce I 



A middle-sized evergreen tree, glabrous except youngest shoots and inflorescence. [,. 



elliptic, blade ii 10, i«'t. A. - 1 i in. Fr. on long slender pedicels, club-shaped, A-j in. 

 long, » ith 5 single lin"~ "f protuberances, B. P. excelsa, Blume. — Syn. /'. umht Hi/era, 



Seem. And ons. Malay Archip. L. alternate, opposite or whorled, blade 12, 



pet I In. long, fr. 1-1} in. long on short stout pedicels, angles without glands or 

 prot aberances. 



Order LXXXV. AMARANTACEjE. Gen. PI. iii. 20. 



Mostly herbs. L. opposite or alternate, stipules 0. PI. supported by bracts 

 and bracteoles, in terminal simple or panicled spikes. Perianth of 6 sepals, 



