198
ILLUSTRATIONS OF INDIAN BOTANY
Tins species, which seems rare in India, has only, so
far as J am aware been found in Mysore. It is readily
known by its prickly fruit, being the only Indian spe-
cies of the tribe Iledysarea?. having that character.
Acrocarpvjs, (R. W.) Arn.
Calyx sub-coriaceons, ebracteolate, campanulate, 5- cleft, segments erect, the superior and inferior a little larger. Torus covering the tube : Petals oblong, sub- coriaceous, about equal, sessile, long persistent, insert- ed on the mouth of the calyx and a little longer than its lobes; aestivation sub-imbricate: Stamens alternate with the petals, filaments broad at the base, subulate, two or three times longer than the petals, straight ; anthers oscillatory. Ovary long, stipitate, (stipe free) oblong, linear, falcate, pointed, with the short incurved acute style, many (about 15) ovuled. Fruit unknown.
This species is a large showy tree. The (rank of one that I saw, I estimated at 50 feet, high without a branch. Leaves alternate, unequally pinnate, deciduous ; peti- oles 4-6 inches, long, round : leaflets 3-4 pairs, lanceo- late, acuminated, somewhat unequal at the base, 2-3 inches long, entire, pale beneath. The flowers largish, expanding before the evolution of the leaves, scarlet racemose. Racemes speciform, 6-8 inches, long, thickly covered with flowers, the pedicels a line or line°and half long, recurved. Stamina nearly an inch long.
A. fraxinifoliits, Am.— Journal of Zoology and Bo- tany No. 12 'Wight's Icones PI. Ind. Or. tab.' 254.
Habitat. — The forests of Courtallum fiowerin°- in February when almost naked of leaves. In this respect resembling the Erythrinas.
The affinities of this genus in the order are not yet clearly made out for want of fruit, but Dr. Arn'ott thinks it referable to the tribe Cassiea of Casalpinea.
EXPLANATION OF PLATES.
78* (81) — 1. Virgilia aurea, (Lam.) Flowering branch, natural size.
2. A dissected flower. The stamens in this figure are incorrectly represented diadelphous: they ought to have been shown monadelphous at the base and free above .
3. Anthers back and front views.
4. Ovary cut vertically.
5. A cluster of pods full grown — natural size.
6. A seed in situ and 7. The same detached — natural size.
8. A seed cut vertically, showing the incurved radicle of Curvembrya.
9. The cotyledons removed from the testa — with the exceptions mentioned, all more or less magnified.
79 (82) — I. Tephrosia suberosa, (D.C.) Flowering branch — natural size.
2. A dissected flower, stamens diadelphous.
3. Stamens back and front views.
4. A portion of the ovary cut vertically.
5. A portion of a legume opened to show the seed in situ.
6. A seed — natural size — 7 and 8. The same dis- sected.
80 (79) — 1. Desmodium rvfescens. Flowering branch, natural size.
2-3. A dissected flower, petals detached from the ovary and calyx.
4. Anthers back and front views.
5. Ovary cut vertically.
6. A portion of a legume showing its jointed struc- ture, two of the cells opened to show the seed in situ.
7-8. Dissected seed.
9. A portion of a leaf to show the hairs — all more or less magnified.
81 (84) — 1. Cyanospermum tomentosum, (W. and A.) Flowering branch — natural size.
2. A flower partially dissected — the lobes of the calyx removed to show the insertion of the petals, stamens and ovary.
3. Anthers back and front views.
4. The ovary opened, 2-ovuled.
5. A legume opened, 2-seeded, seed blue (hence the generic name).
6. A detached seed.
7. The same cut transversely.
8. Seed cut vertically, to show the curved embryo.
9. Cotyledons removed from the testa — all more or less magnified.
82 (78)— 1. Pterocarpus Wallichii, (W.andA.) Flow- ering branch — natural size.
2. A dissected flower.
3. Stamens.
4-5. Ovary cut vertically and transversely.
6. A legume.
7. The same cut vertically, 2-ceIIed and 2-seeded, showing that half the ovules have aborted.
8-9-10. A seed dissected — all more or less magnified.
83 (83) — 1. Cassia Roxburghii, (D.C.) Flowering branch — natural size.
2. Calyx, stamens, and ovary, in situ — filaments not united.
3. The petals detached nearly regular.
4- 5-6. Anthers of different forms.
7-8. Ovary cut transversely and longitudinally.
9. Portions of a legume, cylindrical, with its trans- verse division.
10. Another portion with a seed in situ.
11. A seed — natural size.
12. The same cut transversely, showing the foliaceons cotyledons and copious albumen by which they are sur- rounded.
84 (80)—l. Adinanthera pavonina, (Lirn.) Flowering branch — natural size.
2. A flower expanded.
3. The same, the petals removed to show the calyx, stamens and ovary.
4. Anthers, showing the glandular appendage w hence the generic name is derived.
5- 6. The ovary cut transversely and vertically.
7. A legume as it appears during dehiscence.
8. A seed.
9. Cut vertically, to show the radicle and plumula.
10. Cut. transverselv.
11. Embryo detached.
- Owing to an oversight in numbering the plates of this tribe they are erroneously arranged : with the view of
enabling the error to be corrected in binding, I have numbered the explanations as they should stand in the series.
