236 
PENTANDRIA POLYGYNIA. 
Class V. 
709. XANTHORHI'ZA. W. Yellow-root. Ranuneulacece. Sp.1. 
S993apiif61ia W'. Parsley-leaved^ or 3 f.ap Pu.Gr N. Amer. 1766. Sk s.p Bot. mag. 1736 
710. SIBBAI/DIA. W. Sibbaldia. Rosacece. Sp. S— . 
3994 procumbens P. S. procumbent A cu Jjn.au Y Britain seal. D si Eng. bot. 897 
3995 parviflora P. S. smaU-flowered ^ ^ cu i jn.au Y Cappadocia ... D s.l 
3996 erecta W. upright ^ A cu 1 jn.au Pk Siberia 1806. D s.l Am.rut.ll2. t.l5 
History, Use, Propagation, Culture, and Miscellaneous Particulars. 
709. Xanfkorhiza. From ^avB-os, yellow, and pi^a,, a root, on account of the deep yellow color of the roots. 
A small shrub, with much cut leaves, and branches of dull purplish brown small flowers. 
710. Sibbaldia. So named by Linnaeus, in memory of Sir Robert Sibbald, professor of physic at Edinburgh ; 
author of Scotia lUustrata, &c. les*. Small alpine plants, with the aspect of Alchemilla. 
Class VI. — HEXANDRI A. 6 Stamens. 
This class contains the most beautiful of the herbaceous plants of our gardens. With a few exceptions, it 
is to a considerable degree a natural assemblage, comprehending a large proportion of those favorites of gar- 
deners, the orders Amaryllideae, Asphodeles, Bromeliaceae, Liliaceae, and Melanthacece. The class also 
includes a few grasses and palms, some genera of Berberidese, all Hypoxideee, and many Junceee. 
The Amaryllides, or lilies of the hot-houses, consist of a number of beautiful species, the generic dis- 
tribution of which is uncertain, and difficult to determine. Much attention has been paid to the subject 
by Messrs. Ker, Herbert, and others ; by the former, perhaps, with the most success ; a great deal still 
remains to be done. The limits of the genera are very obscure, and their extreme characters similar. Among 
the Bromeliaceae are found the delicious pine-apple, and the curious Tillandsias, some of which are called 
air-plants. The asparagus and the officinal squill are included in Asphodelese. To the same class are 
related the lily of the valley, the Solomon's seal, and many other curious little plants. The Phormium tenax, 
which produces the strong flax of New Zealand ; the aloes, curious for their fantastic foliage ; the fragrant 
tuberose ; the plantains, so valuable as an important article of food in all the tropics, are all contained in this 
class. Hither also, are referred the valuable rice, the curious bamboo, and the rush, some of the species of 
which are well known for their use in oeconomical purposes, others as the most worthless weeds of our 
heaths. 
Hexandria Trigynia is chiefly made up of the natural order Melanthaceae, among which the Colchicum 
and Trillium are found. 
Order 1. MONOGYNIA. ^§^9 6 Stamens. 1 Style. 
1. Monocotyledons. Perianth superior, colored. 
A. Perianth with the orifice surmounted by a corona or nectary. 
711. Narcissus. Sepals 6, equal. Cup funnel-shaped, of a single leaf Stamens inserted within the cup. 
712. Pancratium. Flower funnel-shaped, with a long tube. Sepals 6. Cup l2-cleft, membranous. 
Stamens inserted on the edge of the cup. 
713 Eucrosia. Flower ringent nodding. Crown formed by the dilated bases of the stamens. Stamens 
declinate, united into a tube, which is split on its upper side. 
714. Eurycles. Flower funnel-shaped, regular. Crown fleshy, short. Stamens inserted into the edge of the 
cup. 
715. Chlidanthus. Flower funnel-shaped, irregular. Stamens erect, included, united by their dilated bases ; 
the short filaments 2-toothed. Anthers innate. Ovary 3-celled, many-seeded. Style filiform. Stigma 3-lobed. 
Capsule cartilaginous, 3-valved. Seeds membranous. 
716. Calostemma. Flower funnel-shaped, with a 6-parted limb. Crown tubular, with a 12-toothed mouth, 
the alternate teeth anther-bearing. Ovary 1-celled, 2-3-seeded. Style filiform. Stigma obtuse. Berry 
1-2-seeded. 
717. Chrysiphiala. Flower funnel-shaped, with a tube narrowed downwards thickened at the base, with a 
dilated 6-cleft limb. Crown 6-cleft. Stamens erect, upright. Stigma thickenfcd, obsoletely trifid. 
