Af'fjlallfls] LXYI. PLUMBAGIlNWCEiE 413 



Order LXVL PLUMBAGINACEJ;. Gen. PI. ii. 623 



[Pliimhafjine(p). 



Mostly herbs, a few shrubs, fi. regular bisexual, bracts usually scarious on 

 the edge, sheathing the fl. Calyx tubular, 5-ribbed, mouth frequently scarious. 

 Petals 5, free or connate at base, stamens 5, epipetalous. Ovary 1-celled, 

 ovule 1, pendulous from a basal funicle. 



Tlie stems of tlie two genera here described hare an entirely anomalous structure. 

 Vo(jeUa on a transverse section shows eoncentric bands of bast (phloem), alternating 

 with broader strata of wood, similar to Dalhprq'ia panuulata^ Cocculm laurifoVni^ and 

 to many climbing shrubs. A transverse section of ^ie/yiV/Z^/i"? shows numerons distinct 

 vascular bundles consisting of thick-walled wood fibres and a radial line of vessels 

 (Gamble, Indian Timbers, ed. ii. 436), 



1. Aegialitis rotundifolia, Eoxb. {A, annul a fa, KurzP. PL ii. 96), Mangrove swamps and 

 tidal forests of Bengal and Burma, Andamans, Malay Peninsula. A simple stemmed, 

 glabrous evergreen shrub, with a thick conical trunk, branchlets marked by the scars 

 of the amplexicaul petiole. L. alternate, thickly coriaceous, nearly orbicular, blade 

 2-3 in. long, petiole sheathing, longer than blade. Fl. in panicled" racemes. Calyx 

 tubular 5-ribbed, the ribs ending in short teeth, petals white, linear, the ujDper 

 portion deciduous, the low er united with the filanlents into a persistent tube. Capsule 

 linear, 3 in. long, pentagonal, dehibcing finally along the angles. A. annulatcf, R. Br., 

 is a widely spread littoral species of tropical Asia and Australia. 



2. Vogelia indica, Gibson ; AVight Ic. t. 1075. iSind, Rajputana, dry districts of the 

 Northern Beccan. A shrub with long branches, 1. alternate, entire, amplexicaul or 

 perfoliate. El. in spikes arranged in terminal panicles. Calyx deeply 5-fid, broad trans- 

 versely undulate wings between the ribs, style filiform, with 5 stigmatose branches. 

 Capsule incUided in the calyx, circumsciss at the base. 



Oedee LXVII. MYRSINACE^. Gen. PL ii. 639 (Myrsineas). 



(Mez, Myrsinacece^ in Engler's Pflanzem^eicli, 1902.) 



Shrubs or small trees. L. alternate, undivided, generally gland-dotted, 

 stipules 0. M. bisexual or polygamous, usually 5-merous, calyx persistent, 

 often enlarged in fr. Corolla-tube short or none, segments (petals) contorted 

 or imbricate. Stamens opposite the corolla-lobes, and freq^uently adnate to 

 them, anthers usually dehiscing by longitudinal slits. Ovary 1-celled, narrowed 

 into the style, ovules inserted on a free central placenta. Embryo transverse 

 in copious albumen. 



Resin cavities and resin ducts are found in the leaves, pith, wood and bark. The 

 account given in Gamble's Indian Timbers ed. ii. 438-440 of Myrsme ufrlcmia^ cajpi- 

 tellata and Mmhelia robusta^ makes it pi^obable that these species have resin cavities or 

 special cells filled with resin in the medullary rays, analogous to the wood oil in the 

 rays of Dijjterocarpus alattis (p. 64, %Q). 



I. Ovary inferior or half superioi', berry many-seeded . 1, Masa, 

 II. Ovary inferior, fr. one-seeded. 



A. IPilaments or shorter than anthers. 



PL in dense axillary clusters, corolla-segments 



imbricate or valvate in bud . . ,2. Myksine. 

 PI. in simple or compound, often panicled, 

 racemes, corolla-segments imbricate or 



contorted in bud 8. Embelia. 



PL u.sually umbellate, corolla-segments twisted, 

 the right hand edge overlapping 

 Anthers tx-ee, calyx glabrous. . . .4. Arbisia. 

 Anthers free, calyx hairy . • . Pimelandea (p, 420). 



Anthers connate. 

 Corolla middle-sized, segments acute . Hymenandra (p. 420). 

 Corolla minute, segments emarginate . Amblyanthcis (p. 420). 



