Dr. A. Krohn on the genus Doliolum and its species. 119 teraliter suspensa, anatropa. Stylus cum stigmate confusus, ' demum subreniformi-discoideus, parvus, subconcavus. Fructus t. ignotus. — Frutex Guianensis -, folia alterna, oblong a, majv^cula, glaherrima, petiolata-, racemi axillares, divaricatim ramosi; Hores parvi, cum pedicellis articulati. L Discophora Guianensis ; — omnino glaberrima, ramulis tere-tibus, substriatis ; foliis oblongis, utrinque acuminatis, apice lineari-angustatis, coriaceis, supra nitidis, nervis sulcatis, venis immersis, subtus fuscis, nervis rubentibus cum venis transversis prominentibus, punctis minutis resinosis notatis, margine revolutis^ petiolo incurvo canaliculate ; racemis axil-' laribus petiolo 2-3-plo longioribus, dichotome et divaricatim < ramosis, pedicellis bracteatis, bractea oblonga obtusa crassi-uscula pubescenti, floribus cum pedicello articulatis. — Deme-rara. — v. s. in herb. Hook. {Parker). The branches are terete with a smooth bark ; the axils are 1 ^ to 2 inches apart ; the leaves are quite smooth, thick, and coria-ceous, 8 inches long, 2^ inches broad, on a petiole of |^ to f inch in length : a raceme about 1^ inch long springs t)ut of each axil, sending out from the base upwards several alternate branches at nearly right angles, which are again divided ; the branchlets and pedicels are slightly pubescent and furnished at their base with a short, obtuse, fleshy bract, covered with short fine hairs ; the ovarium is 4 lines long, 1^ line diameter ; the stigmatiferous disk is about one-third of the diameter of the ovarium ; the calyx and petals are quite glabrous; the latter are linear, submembranaceous, marked with three parallel nervures, and are of a reddish yellow colour when dry*. ban .y> ' ___ . XIII. — Upon the genus Doliolum and its species. . , By Dr. A. Krohn f. " ^^'"''•'^'^"'' [With a Plate.] QuoY and Gaimard describe and figure in their work, the ' Voy-age of the Astrolabe' (p. 599. pi. 89. figs. 25-28), a small cry-stalline Tunicary not 2 lines long, which they first discovered at Amboyna, and subsequently found again on the coast of Vani-koro. For this animal they created a genus, to which they gave the very appropriate name of Doliolum, placing it in the near *''*'^A representation of this species, with analytical details, will be seen in plate 20 of the * Contributions to Botany.' t Wiegmann's Archiv fur Naturgeschichte, 1852. — Translated by Thomas H. Huxley, F.R.S., Assistant Surgeon R.N.
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