﻿( 106 .) 



LAV AT E'RA* * 



Linnean Class and Order. Monade'lphia f, Polya'ndria. 



Natural Order. Malva'ce®, Juss. Gen. PI. p. 271. — Sm. Gr. 

 of Bot. p. 148. — Lindl. Syn. p. 40 ; Introd. to Nat. Syst. of Bot. p. 

 33. — Rich, by Macgilliv. p. 476. — Loud. Hort. Brit. p. 502. 



Gen. Char. Calyx (fig. 2.) inferior, double, permanent ; outer 

 (fig. 1.) largest, of 1 sepal, in 3 broad, deep, spreading segments; 

 inner (see figs. 2 & 5.) of 1 sepal, divided half way down into 

 5 more upright and pointed lobes. Corolla of 5 inversely heart- 

 shaped, blunt, flat, spreading petals, attached by their contracted 

 claws to the tube of the stamens. Filaments (see figs. 2 & 3.) nu- 

 merous, hair-like, united below into a cylindrical tube. Anthers 

 kidney-shaped. Germen (fig. 4.) round, depressed. Style (fig. 4.) 

 cylindrical, with a conical permanent base. Stigmas (see fig. 4.) 

 from 7 to 14, bristle-shaped, as long as the style. Capsules (fig. 6.) 

 as many as the stigmas, compressed, either tumid, or concave and 

 wrinkled, at the back, ranged in a circle round the columnar recep- 

 tacle, which in some species is greatly dilated ; each of 2 valves 

 and 1 cell, finally deciduous. Seeds (fig. 7.) solitary, kidney-shaped. 



The outer calyx of 3 lobes; and the whorled, single-seeded 

 capsules ; will distinguish this from other genera in the same class 

 and order. 



One species British. 



LAVATE'RA ARBO'REA. Sea Tree-mallow. 



Spec. Char. Stem woody. Leaves with about 7 angles, downy, 

 plaited. Peduncles axillary, clustered, single-flowered. 



Engl. Bot. 1. 1841. — Linn. Sp. PI. p. 972.— Muds. FI. Angl. (2nd ed.) p. 306. 

 — Sm FI. Brit. v. ii. p. 742. Engl. FI. v. iiL p. 248. — With. (7th ed.) v. iii. p. 

 810. — Gray’s Nat. Arr. v. ii. p. 639. — Lindl. Syn. p. 41. — Hook. Brit. FI. p. 

 314. — Lightf. FI. Scot. v. i. p. 374. — Davies’ Welsh Botanology, p. 67. — Hook. 

 FI. Scot. p. 209. — Grev. FI. Edin. p. 153. — FI. Devon, pp. 117 ic 179. — Don’s 

 Gen. Syst. of Gard. and Bot. v. i. p. 469. — Mack. Catal of PI. of Irel. p. 64. — 

 Malva arborea marina nostras, Ray’s Syn. p. 252. 



Localities. — Hocks, &c. near the sea. Rare. — Cornwall ; Godrevy Island, 

 near Portreath ; Mullion-gull Rock in St. Ives’ Bay, &c. : Borlase. — Devon ; 

 At Teignmouth: Dr. Withering. On the rock at the entrance of Torbay, 

 plentifully: Mr. Weston. Plymouth: FI. Devon. — Dorsetshire; Recorded 

 by Ray as a native of Portland and Chesil Bank, where it is still found: Dr. 

 Pulteney. — Hampshire; At Hurst Castle, over against the Isle of Wight: 

 Ray. — Somersetshire ; Steep Holmes Island, Severn Sea : Mr. W. Christy. — 

 WALES. Anglesea; On islets S. W. and West coast of Anglesea ; near 

 Llanddwyn; and on the South Stack, near Holyhead : Rev. H. Davies. On 

 the island of Caldey near Tenby: Ray. On the Elyange Stack, and other in- 



Fig. 1. Outer Calyx or Involucrum. — Fig. 2. Outer and Inner Calyx with 

 Stamens and Pistils. — Fig. 3. Cylindrical Tube formed by the union of the nu- 

 merous filaments. — Fig. 4. Germen, Style, and Stigmas. — Fig. 5. Outer and 

 inner Calyx, and Germen. — Fig. 6. A whorl of Capsules. — Fig. 7. A Seed. 



* So named by Tournefort, in honour of Lavater, a physician at Zurich. 

 Dr. Martyn. 



t From monos, Gr. one, and adelpkos, Gr. a brotherhood ; the 16th class 

 in the Linnean Artificial System, containing those plants which have perfect 

 flowers, with their stamens united by their filaments into one tube or brotherhood. 



