ILLUSTRATIONS OF INDIAN BOTANY.
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or four series.. Stigmas pointed or subcapitate. Capsules cartilaginous or papery, (rarely coriaceous) for the most part tri-cephalous, placenta nerve-like, or pyramidal, 3-sided — Mr. Royle found Hypericum perforatum on the Himalayas, and it seems not improbable other species may be found.
Norysca Sp. — Section Androsceminea ?. — Sepals coriaceous, nearly equal, erect after an- thesis. Petals somewhat knife-shaped, obliquely acuminated, deciduous. Androphores 5, very- short, deciduous. Ovary, 5-celled. Styles 5, often united to near the apex. Stigmas minute, suborbiculate. Capsule 5-celled, somewhat coriaceous, placenta pyramidal, 5 sided, 5 crested, (the crests bearing the seeds) persistent. Seed minute, straightish.
To this genus our Hypericum mysorense, Prod. 1, page 99, belongs (JY. mysorensis, Wight's Icones, No. 56, JY. myrtifolia ? Spach) and H. Hookerianum, perhaps also, several of the Himalayan species.
Brathys. Mutis and Spach. — Section Brathydinece. — Sepals 5, unequal, or about equal. Petals, hatchet -shaped (ddlabriformia), cuspidate, withering, involute after anthesis ! Stamens somewhat definite in number, (9-30, rarely 5) or indefinite, (40-100) persistent. Ovary, 1-celled. Styles 3, (rarely 4-6) straight or recurved, distinct. Stigmas thickish, subcapitate. Capsules papery, or sub-coriaceous, 1-celled, 3 (rarely 4-6) valved, placentas filiform, or nerve- like.
To this genus our Hypericum japonicum and Wightianum, (the plant here figured) and an intermediate form, perhaps a species, lately found in Mysore by Lieut. Munro belong. Of this last, my specimen does not enable me to determine whether it is really a species or only a luxu- riant variety of B. japonica. It appears to be a much larger plant, has two stipitate glands on each edge of the sepals, and the margins of the leaves are furnished with a row of black dots. In our characters of both B. japonica and Wightia?ia, it is particularly mentioned that the leaves have not black dots, which led Mr. Munro to conclude that this one was certainly new on account of its having them. On looking for them, I found that the black colour had faded in drying leaving very pale brown spots, only to be observed by the most careful examin- ation, similar ones are sometimes, though not always found on the leaves of both the others, whence I conclude this is a character of no value from its not being constant even in the same species, nor even on all the leaves of the same plant : the stipitate glands of the calyx, I think, a better character. The minute and copious analysis of B. Wightiana in the accom- panying figure will afford a correct idea of the characters of the genus, and if compared with those of Norysca, will prove, that, it is not without good reason the overgrown and polymorphous genus Hypericum is broken down. I acknowledge that, judging from characters only, I think some of M. Spach's genera are made to rest on points of perhaps too trivial importance, but gene- rally, I believe, it will be found we are great gainers by his labours, for previously a more unsa- tisfactory genus to examine scarcely existed in the vegetable kingdom.
P. S. — After this account of Hypericinece was written and partly in type, I was led in the course of my examination of Guttiferce, to the very unexpected conclusion, that the genus Xanthochymus , could not be retained in that order, and that, with the exception of the seed alone it is much more justly referable to the tribe Desmostemonece of this order, than to Gutti- ferce. My reasons for adopting this opinion will be explained while treating of Guttiferce, and will I think fully establish its correctness, and at the same time still further prove the inti- mate relationship existing between these two orders.
EXPLANATION OF PLATE 43.
1. Brathys (Hypericum) Wightiana — natural size.
2. An expanded flower.
3. Anthers.
4. The ovary somewhat advanced cut transversely, showing it 1 -celled with 3 parietal placentae.
5. A fruit nearly mature — natwral size.
6. The same magnified.
7. The mature fruit after dehiscence, showing the manner in which the valves separate from the placentae.
8. A seed.
9. The same cut transversely.
10. The testa removed.
11. The embryo.
12. A portion of a leaf magnified, to show the pellu- cid dots — with the exception mentioned — ail more or less magnified.
