Saurauja] XVI. TEENSTECEMIACE^ 63 



B. Flowers mostly on the old wood, in trichotomous cymes, bracts in pairs 

 at all the ramifications. 



3. S. Roxburghii, Wall.; Kurz, F. Fl. 103. Vera. Auli gogen, Xep. ; 

 'I'lu't ngayan, Burma. 



A middle-sized evergreen tree, the young parts covered with a rnealy scurf, 

 intermixed with minute scales. Leaves 8-12 in. Cymes hairy, niany-flovered, 

 bracts deltoid, acute. Fl. \ in. diam., stamens x, styles 3-5. 



Sikkiui. Terai and outer vallevs. ascending to 4,000ft., Assam. KUasi hills, Manipur, 

 Chittagong. hills east of Toungoo, 2,000-6,000 ft. Upper Burma, 1.500-3.000 ft. Fl. 

 C. S., H. s. 



4. S. fascicvtlata, Wall PI. As. Ear. t. 148. Sard gogen, Xep. Nepal, Sikkim. 2,000- 

 5.000 ft. A small tree. Leaves ferrugineo-tomentose beneath. Fl. J in. diam., whit. ■. 

 afterwards pink. 5. S. punduana, "Wall. Sikkim, Terai, and outer valleys, ascending 

 to 6,000 ft.. Upper Assam, Khasi hills, Manipur. Burma. Cymes many-flowered, ramifi- 

 cations densely covered with acute scales, bracts broad-ovate. Fl. J in. diam. 6. S. 

 triBtyla, DC; Malay Peninsula, said to extend north into Tenasserim. Leaves spinulose- 

 serrate, 7-10 in. Fl. unisexual, J in. diam., on slender pedicels, in fascicles of 2-6 

 mostly on the old wood, petals white, stamens 20, styles 3, rarely 4. 7. S. manrotricha, 

 Kurz. F. Fl. i. 100. Assam, Khasi hills. Upper Burma. Branchlets, petioles and under 

 side of leaves densely clothed with long still" hairs. Leaves narrow-lanceolate, serratures 

 setose, secondary nerves 12-15 pair, arcuate. Fl. red. 8. S. cerea, Griff. (S. arcuata, 

 Kurz. F. I'!, i. In;',.. Bhutan. Upper Burma. Young parts covered with appressed hard 

 sharp seales. Leaves obovate, blade 8-10 in., petiole J-l in. Fl. 1 in. diam., petals 

 waxy, white, base blood-red. 



Stachyurus himalaicus, Hook. fil. & Thorns., Himalaya, from Nepal eastwards, 5,000- 

 8,000 ft., Manipur, China, is a small tree or extensively scrambling shrub, glabrous, 

 II. tetramerous, in short lateral spikes on long pendulous branches. Stamens s. ovary 

 I-celled. style simple. >t ijrina capitate-peltate, ovules many. Berries J, in. diam. 



Obdeh XVn. DIPTEROCARPACEvE. Gen. PL i. 189. 



hi/iti rocarjiece.) 



(Braudis in Journal Linnean Society, vol. xxxi, (1895) p. 1.) 



Resinous trees, rarely shrubs, mostly evergreen. Leaves alternate, stipulate, 

 simple, penniveined, generally coriaceous, petioles mostly thickened below the 

 blade. Young shoots and inflorescence, calyx and outside of petals in most 

 Bpecies pubescent, hairs 1-celled, generally stellate or fasciculate. Fl. bi- 

 sexual, regular, pentamerous, in spikes or racemes, these often unilateral and 

 mostly paniculate. Receptacle fleshy, broad, Bal or ohconical, often concave, 

 bearing on its outer edge the calyx, the segments of which as a rule are much 

 enlarged in fruit. Petals contorted, stamens 5, L0, or more, anthers introrse, 

 adnate to filaments, which are mostly short, the connective being often pri - 

 longed beyond the anthers' Ovary 3-celled, often prolonged into a fleshy 

 stylopodium, in some cases immersed in the hollow receptacle. Two collateral 

 ovules iii eaeli cell, attached to the inner angle. Fruit 1-seeded, pericarp 

 coriaceous, indehiscent. Seed with or without albumen, cotyledons fleshy, 

 bifid, often stipitate, in most species filled with starch, in others with oil. 

 while some contain both. 



Remarkable anatomical characters, /own ducts are found in the pith of the young 

 stem and branches, in the pith of all vascular bundles, in the petiole, midrib, nerves 

 and vein- of leaves as well as of those bundles which run through the hark. The 

 walls of these ducts are lined bj ■■< stratum of thin-walled secreting cells. In many 

 species similar ducts are also found In the wood, Thej contain an essential oil, known 

 as wood -oil in t he ease of Dipti rocarpus, as camphor-oil in the case oi Dr lobalanops. 

 Exposed to the air, outeide or in cavities of the trunk, these essential oils are 

 transfon I into resin or camphor. 



Cortical leaj traces. — Boi listai below the node the li Tom 



