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 NEILGHERRY PLANTS. 23 23 of the citron is not winged, while here it is, which is considered an important character. This, therefore, seems to be an intermediate form, if not, indeed, a distinct species; but the limits between the species of this genus are so imperfectly defined that I could not help hesitat- ing before adding to the difficulties which attend their investigation by adding one to the number, which more extended acquaintance with its forms might afterwards require me to reduce. Towards the base of the Hills several other Aurantiacious plants occur, such as Limonia, Glychosmis, Murraya &c. The beautiful and fragrant, but very evanescent flowered, Murraya paniculata is even occasionally found at an elevation of nearly 5,000 feet. I am uncertain whether either of these species of citrus would thrive at Ootacamund, but the C. Limetta certainly does very well when transferred to the gardens at Kottergherry and forms a most ornamental shrub. The other I have not myself met with in its native place, (the specimens from which the drawing is taken, having been brought in by a native Collector) and cannot speak of its fitness as a garden ornament. CITRUS.-Orange Lime &c. Flowers usually in a quinary proportion. Calyx urceolate, 3-5-cleft. Petals 5-8. Stamens 20-60: filaments compressed at the base, and there more or less united and polyadelphous: anthers oblong. Ovary many-celled ovules 4-8 in each cell, one above the other in a double row, pendulous. Style terete. Stigma hemisphærical. Fruit baccate, 7-9-celled cells with several seeds, filled with a fleshy substance composed of numerous irregular pulpy bags or vesicles, which are mere cellular extensions of the sides of the carpels. -Trees or shrubs with axillary solitary spines. Leaves reduced to one terminal leaflet jointed with the apex of the petiole: petiole often winged. This genus is so universally cultivated and its species so well known under the various names of Shaddock Pumplemose, Orange, Citron, Lemon and Lime, that any remarks on its habits and peculiarities seem quite unnecessary here. CITRUS VULGARIS (Risso). Leaves elliptical acute or acuminated, slightly toothed: petiol more or less winged, flowers large white fruit orange-coloured, roundish or slighly elongated or depressed: rind with concave vesicles of oil pulp, acid or bitter. Neilgherries on the slopes below Kottergherry and Coonoor in the opinion of the Collector quite wild but possibly raised from seed accidentally dropped by travellers. CITRUS LIMETTA (Risso) leaves oval or oblong often toothed: petiol more or less winged or margin- ed: flowers small white: fruit pale yellow ovoid or roundish, terminated by a knob: rind with concave vesicles of oil: pulp watery acid or sweetish occasi- onally slightly bitter. Orange valley, near Kotter- gherry flowering August and September certainly As above remarked, I am doubtful whether this is the true C. vulgaris, some points of the character is at variance with the figure but none of much impor- tance and without better specimens, for comparison, of the true C. vulgaris than I possess, I could not venture to found a distinct species on these differ- ences. wild. A low, very ramous erest, thorny, bush cover- ed during the flowering season with a profusion of beautiful fragrant white flowers; a very ornamental shrub, well deserving a place in the shrubbery, when judging from what I saw at Kottirgherry, it grows freely. XVI. HYPERICINEE.-TUTSAN TRIBE. This is as much an extra-tropical family as the oranges are a tropical one. They abound in Europe and north America, and the Indian ones are all alpine. Five only have yet been found on the Indian peninsula, all of which are natives of the NeilgLerries: two