NEW AND HARE PLANTS. 



PART 11. 



NEW OR RARE PLANTS 



(Noticed since our last.) 



161 



HOYA CORIACEA. Thick- leaved Hoy a. (But Reg. 



ASCLEPIADACE*. PENTANDRIA DIGYNIA. 



1. A. scarce plant, requiring the temperature of the stove, and to be grown 

 on the trunks of trees. Those of our readers unacquainted with the genus 

 will, perhaps, understand us better by saying, that this is a sort of honey 

 plaut, familiar to most persons, with its waxey white flowers, and olten grown 

 in windows. The Hoya coriacea appears to be a thicker foliaged plant, 

 stronger in its stem, and perhaps less inclined to become a twiner or creep- 

 er than the common honey plant. 



This new Hoya flowered foi the first time in this country in the stoves ot 

 Messrs. Loddiees, of Hackney. It is a native of Manilla, and was sent 

 home by Mr. Cunningham. Its flowering season is August. 



ARISTOLOCHIA HYPERBORE*, Northern Birthwort. (Pax. Mag. 



ARlSTOLOCHtACE*. GYNANDRIA 11EXANDRIA. 



2. This is a curious and beautiful plant, supposed to be a native of the 

 northern district of India. In this country it requires the temperature ot 

 the stove. It has been cultivated for some time in the collection of Mr. 

 Knight, of the King's Road, Chelsea, where it flowered during the past year. 

 It is a twiner, running to a considerable length, the foliage, heart-shaped, 

 and the flowers somewhat resemble the singular form of the pitcher plant, 

 but having a long and curiously formed lip, are of a yellow and brown co- 

 lour. We have known several species of this genus requiring the tem- 

 perature of the stove, but have always found Uiem exceedingly difficult to 

 bloom. 



GALACTODENDRON. UTILE. Palo de Vaca ; or Cow Tree of the Carac- 

 cas. (Bot. Mag. 



URTICE*. 



3. M. de Humboldt was the first to bring the Cow Tree of Caraccas, into 

 notice. " VVe returned," he says, in his valuable Work, '■ from Porto Ca- 

 bello to the valley of Aragua, stopping at the plantation of Barbula, through 

 which the new road to Valencia is to pass. For many weeks, we had heard 

 a great deal of a tree, whose juice is a nourishing milk. The tree itself is 

 called the Cow Tree, and we were assured that the negroes on the farm, 

 who atfi in the habit of drinking large quantities of this vegetable milk, con- 

 sider it as highly nutritive ; an assertion which startled us the mure, as al- 

 most all lactescent vegetable fluids are acrid, bitter, or more or less poison- 

 ous. Experience, however, proved to us during our residence at Barbula, 

 that the virtues of the Cow Tree, or Palo de Vaca, have not been exagge- 

 rated. This fine tree bears the general aspect of the Star-Apple Tree; its 

 oblong painted, coriaceous, and alternate leaves are about ten inches long, 

 and marked with lateral nerves, that are parallel, and project beneath. 

 Tli* flower we had no opportunity of seeing ; the fruit is somewhat fleshy, 

 and contain! one or two kernels. Incisions, made in the trunk of the tree, 

 Vol. VII. No. 77. u 



