Boswellia
(named after Dr. Boswell, formerly of Edinburgh). Olibanum Tree. ORD. Burseraceae. Ornamental and economic evergreen stove trees. Flowers hermaphrodite; calyx five-toothed, permanent; petals five, obovate-oblong, spreading, with the margins incumbent in aestivation; disk cup-shaped, crenate; stamens ten; capsule trigonal. They are of easy culture, thriving well in loam and peat soil. Cuttings root readily if placed in sand under a glass.
B. glabra (glabrous). fl. white, small, with a red nectary and yellow anthers; racemes aggregate, simple, terminal, shorter than the leaves. l. impari-pinnate; leaflets broad, lanceolate, blunt, serrated, smooth. h. 30ft. Coromandel, 1823. (B. F. S. 124.) B. serrata (saw-edged-leaved).* fl. whitish-yellow; racemes axillary, simple. l. impari-pinnate; leaflets ovate-oblong, taperpointed, serrated, pubescent. h. 20ft. India, 1820. (T. L. S. xv., 4.)