lxxvi 



NATURAL ARRANGEMENT. 



constitute an article of food ; beer is obtained from the roots of others ; 

 been used as tea. Division and seeds. 



503. Tribe 1. Polypodia^ceje. 



and, finally, Aspidium fragrans has 



lig, 0. herb. 83. £ 17§ ft. 



2901 Polyb6trya H. Sf B. 



2902 Acr6stichum L. 



2903 i/emionitis L. 



2904 Gymnogiamma Desv. 0 



2905 Meniscium Schreb. 



2906 Xiph6pteris Kaulf. 



2907 Ceterach W. *0 



2908 Polypodium L. *0 



2909 Tamitis Swz. 



2910 Nothochke v na R. Br. 



2911 Niph6bolus Kaulf. 



2912 Onoclea L. 0 



2913 Struthiopteris TV. 0 



2914 Allosbrus Bernh. *0 



2915 Ellobocarpus Kaulf. 

 291(5 Parkeria Hook. 



2917 Lomaria W. *0 



2918 .Slechnum L. 0 



2919 Woodwards Sm. 0 



2920 Do6dm R. Br. 



2921 yfsplfcnium L. 



2922 Ca?n6pteris Berg. 



2923 Allantodia R. Br. 



2924 Scolopendrium Sm. 



2925 Diplazium Swz. 



2926 Pteris L. 



2927 Vittaria Sm. 



2928 ionchitis L. 



2929 Antrbphyum Kaulf. 



2930 ^diantum L. 



2931 Linds^a Dry. 



2932 Cheilanthes Swz. 



2933 Davallm Sm. 



2934 Dicksbma Herit. 



2935 Balantium Kaulf. 



2936 Cibbtium Kaulf. 



2937 Als6phila R. Br. 



2938 Aspidium Swz. 



2939 Pleopeltis Hum. 



2940 Wo6ds/a R. Br. 



2941 CyatheaSra. 



2942 7Yich6manes L. 



*0 20 



*0 



*0 25 

 *0 3 



*0 



2943 Hymenophyllum Sm. *0 



Osmund a v ce&;. 

 £ 7 ft 



504. Tribe 2. 

 lig. 0. herb. 6. 



2944 Todea W. 



2945 Osmunda L. 



2946 Lygddium Swz 



2947 Aneimia Swz. 



2948 Schizae v a Sot. 



505. Tribe 3. Gleichenie\e. 

 lig. 0. Aerft. 1. £ 2 ft. 



2949 Gleichem'a Sm. 0 



506. Tribe 4. Ophiogl6sse.e. 

 lig. 0. herb. 7. £ 3£ ft. 



2950 Botrychium Swz. 



2951 Ophiogl6ssum L. 



507. Tribe 5. MarattiaYe^. 



2952 Marattia Sm. 



2953 Danaj N a Sm. 



508. Order II. EQUISETA^CEiE. 



Genus 1, Species 10 ; Hot-house Species 0 ; Green-house Species 0; Hardy Ligneous Species 0 j 

 Hardy Herbaceous Species 10. _t 0 feet ; £ 6| feet ; ^ 0 feet. 



Marsh plants, with a verticillate arrangement of their branches, and a highly indurated epidermis. Their 

 seeds are remarkable for a hygrometrical movement. The quality of some is said to be hurtful to cattle, 

 which is denied by others. Formerly they were used in medicine as astringents and diuretics. 2?quisetum 

 hyemale has been employed for tea, and as a polishing material for furniture, under the name of Dutch 

 rushes. Divisions. 



2954 JJquisetum L. *0 10 



509. Order III. LYCOPODI'NE^. 

 Genera 2, Species 19 ; Hot-house Species 1 ; Green-house Species 2 ; Hardy Ligneous Species 0 j 

 Hardy Herbaceous Species 16. ± 0 feet j £ 4 feet ; ^ 1 foot. 



With the habits of mosses they have the seeds of ferns. They are herbaceous prostrate plants, with imbri- 

 cated simple leaves. Lycopodium complanatum, Selago, and clavatum are used as dyes ; the sporules of Lyco- 

 pbdium clavatum are said to be employed for ameliorating wine, and are also used in making fire-works, on 

 account of their inflammable nature. The herb of Lycopodium clavatum and Selago is emetic, and produces 

 abortion. Lycopodium Phlegmaria is reputed an aphrodisiac. Divisions. 



2955 Lycopodium L. 



*0 16 | 2956 Psilbtum Swz. 



510. Order IV. MARSILEA v CEiE. 

 Genera 4, Species 4 ; Hot-house Species 0 ; Green-house Species 0 ; Hardy Ligneous Species 0 ; 

 Hardy Herbaceous Species 4. J 0 feet ; j£ 1 foot ; ^ 2 feet. 



Floating or erect simple-leaved plants of no known use. 

 L£mna is to this, are not known in cultivation. Plants. 



The Marsileas, which are to some countries what 



2957 Isoetes L. 



2958 Pilularia L. 



2959 Salvi'nia Mich. 



2960 Marsilea L. 



511. Order V. MU'SCI. 



Genera 37, Species 330. 



Winter plants, reviving in humid air, abundant about the poles, rare at the equator. They cover the moun- 

 tains of the earth as high as the limits of perpetual snow ; growing in patches, they clothe the most barren 

 spots with verdure, preserve trees from heat and cold, prepare the earth for nourishing more perfect plants, 

 and fill up bogs and morasses with vegetable matter. To the economy of nature they are, therefore, more 

 subservient than to the purposes of man. Medicinal astringent properties were formerly ascribed to some few, 

 but they are now neglected or forgotten. 



512. Order VI. HEPA'TICJi 



Genera 6, Species 94. 



Creeping small plants, with their leaves arranged in an imbricated manner. They differ from Lichens in 

 structure, color, and fruit ; from Musci, in the dehiscence of their capsule. Their qualities are mild, if any ; 

 some of them are fragrant. 



Class II. APHY'LL^. 



Genera 273, Species 2022. 



The genera under the following orders, being arranged under the same orders in the Linnean system, 

 according to their natural affinities, are not here repeated. 



513. Order VII. A'LGJE. 

 Genera 79, Species 453. 



Plants ascending from the simplest form known in vegetation to a very compound state. The lowest are 

 filiform, leafless, with their fructification immersed ; the highest are leafy, with the fructification included in 

 an indehiscent wart-like pericarpium. Some copulate like animals, others have a spontaneous motion like 

 worms. Their color is lively, in the lowest grades green, in the highest red or purple. Some are ephemeral 



