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Show A 'NOTATIO S AND ADDITIONS. 305 standing, Professor Kunth, has justly remarked (in manuscript notices communicated to the Gartenbau-Verein, in December, 1846), "no real enumeration or computation could be made until a systematic catalogue, ba ed on a rigorous examination of species, had been prepared. Such an enumeration has given rather above 14,060 species: if we deduct from this number 375 cultivated Ferns, we have remaining 13,6 5 phrenogamous species; among which, we find 1600 Compositre, 1150 Leguminosre, 428 Labiatre, 370 Umbelliferre, 460 Orchidere, 60 Palms, and 600 Grasses and Cyperacere. If we compare with these numbers those of the species already described in recent works-Compositre (Decandolle and Walpers) about 10,000; Leguminosre, 8070; Labiatre (Bentham), 2190; Umbelliferre, 1620; Grasses, 3544; and Cyperacere (Kunth, Enumeratio Plantarum), 2000 -we shall perceive that the Berlin Botanic Garden cultivates, of the very large families (Compositre, Leguminosre, and Grasses), only 1-7th, 1-8th, and 1-9th ;-and of the small families (Labiatre and Umbelliferre), about 1-5th, or 1-4th, of described species. If, then, we estimate the number of all the different phrenogamous plants cultivated at one time in all the botanic gardens of Europe at 20,000, we find that the cultivated species appear to be about the eighth part of those which are already either described or preserved in herbariums, and that these must nearly amount to 160,000. This estimate need not be thought excessive, since of many of the larger families (for example, Guttiferre, Malpighiacere, Melastomere, Myrtacere, and Rubiacere) hardly a hundredth part are found in our garden.'' If we take the number given by Loudon in his Hortus Britannicus (26,660 species) as a basis, we shall find (according to the justly drawn succession of inferences of Professor Kunth, in the manuscript notices from which I have borrowed the above) the estimate of 160,000 species rise to 213,000; and even this is still very moderate, for Heynhold's Nomenclator botanicus hortensis (1846) even rates the phrenogamous species then cultivated at 35,600; whereas, I have employed Loudon's number for 1832, viz. 26,660. On the whole, it would appear from what has been said-and the conclusion is, at first sight, a sufficiently striking one-that at present there are almost more known species of phrenogamous (plants with which we are ac- 26* |