PTE 



467 



PTE 



Mostly fine ornamental trees, attaining the 

 height of from forty to sixty feet, and growing 

 best in a loamy soil. Cuttings of the ypnng 

 wood not deprived of any of their leaves, will 

 root in sand, under a glass, in heat. The 

 wood of the tree is dark red with black veins, 

 capable of a good polish, and so heavy as to 

 sink in water. P. santalinus yields the offici- 

 nal Eed Sanders-wood. Synonymes : 1, P. 

 glabra, Brjja itbcnus. 



dalbergioldes Yellow . 5, S. Ev. T. 10 B. Ind. . 181T 



draco . . . White . 5, S. Ev. T. 80 W. Ind. . 1S20 



flavus . . . Yellow . 4, S. Bv. T. 20 China . 1826 



Sudicus . . White . 5, S. Ev. T. 80 E. Ind. . 1818 



linif61ius 1 . Yellow . 5, S. Ev. CI. 12 B. Ind. . 



marsiipium . White . 4, S. Bv. T. 40 B. Ind. . 1811 



Rtfhrii . . . White . 4, S. Ev. T. 20 Guiana . 1816 



s ^ Uno1 " ] Yellow . 5, S. Ev. T. 50 S. Leone 1798 



santallnua . Yellow . 5, S. Ev. T. 50 E. Ind. . 1800 

 seahdens . . Yellow . 4, S. Ev. CI. 12 Caraccas 1817 



Pterocarya, Ntttt. See Juglans pterocarya, 

 Drcpanocarpus, Eeastaphyllum, and Loncho- 

 carpus. 



PTEKOCAiiLON, De Candolle. See Conpza. 



Pterocephaltjs, Vaillant. From pteron, a 

 wing, and kephale, a head ; in allusion to the 

 receptacle of the flowers being villous. Linn. 

 4, Or. 1, Nat. Or. Dipsacacece. P. dumetbrum 

 will grow well in sandy loam, and increase 

 freely from cuttings, or seeds. The annual 

 kinds merely require sowing in the open bor- 

 der where they are intended to flower. Syno- 

 nymes : 1, Scabidsa dumetbrum ; 2, P. brachi- 

 ata; 3, Cephalaria pappbsa, P. VailUntii ; 

 4, P. didndrus ; 5, O. plumbsa. See Ce- 

 phalaria and Scabibsa. 



dumetbrum 1 White . 6, G. Ev, S. 1£ Teneriffe . 1820 

 palsestlnus2. White . 7, H. A. 1 Cyprus .1771 

 pappbsus 8 . Whito . 7, H. A. 1 S. Eur. . 1597 

 diandrus 4 . Purple . 6, H. A. 1 Spain . . 1823 

 plumbsus 5 . Blue . . 6, H. A. 1 Spain . . 1819 



Pterocladtjs. See Bdccharis. 



PTERODfscus, Hooker. From pteron, a wing, 

 and discus, a disk. Linn. 14, Or. 2, Nat. Or. 

 Scrophulariacew. For cultivation, see Calceo- 

 laria. 

 specibsus . Lil. pur. . 5, G. Her. P. 2 Africa . 1S44 



Pterog6nium, Swartz. From pteron, a wing, 

 and gonos, a shoot'; referring to the pinnated 

 stems. Linn. 24, Or. 5, Nat. Or. Bryacece. 

 These plants are found on trees and sub-alpine 

 rocks. Synonyine: 1, P. cosspitbsum — filifdrme 

 1, grdcile, Smithii. See Liskea. 



PTERONEtjRON, De Candollc. From pteron, a 

 wing, and neuron, a nerve ; because of the 

 winged placentas. Linn. 15, Nat. Or. Brassi- 

 cacece. Rock plants, requiring a light soil, 

 and increased by seeds, which may be sown 

 where the plants are intended to remain. 

 Synonymes: 1, Carddmine carnbsa ; 2, C. 

 grcscum. 



eambsum 1 . Pale . 6, H. Her. P. i Hungary . 1S24 

 griecum 2 . . White. 6, H. A. i S. Bur. . 1710 



Pter6nia, Linn. From pteron, a wing ; the 

 feathery scales of the receptacle. Linn. 19, 

 Or. 1, Nat. Or. Astc^acece. A genus of inte- 

 resting-plants, growing well in loam and peat, 



and readily increased by cuttings. See Stmhe- 

 Una. 



camphor&ta . Yellow . 6, G. Bv. S. 8 C. G. H. . 1774 



echinilta . . Yellow . 7, G. Bv. S. 2 C. Or. H. . 1818 



fasciculata . Yellow . 6, G. Bv. S. 2 C. G. H. . 1818 



flexieaulis . Yellow . 7, G. Bv. S. 3 C. G. H. . 1812 



glomerata . Yellow . 6, G. Bv. S. 2 C. G. H. . 1817 



oppositifblia. Yellow . 7, G. Ev. S. I C. G. H. . 1774 



pallens . . Yellow . 6, G. Ev. S. 2 O. G. H. . 1816 



scaribsa . . Yellow . 7, G. Ev. S. 2 C. G. H. . 1815 



stricta . . Yellow . 5, G. Ev. S. 3 C. G. H. . 1774 



Pter<5fsis, Desv. From pteris, a fern, and 

 opsis, resemblance ; fronds. Linn. 24, Or. 1, 

 Nat. Or. Polypodiacem. Stove fern. Syno- 

 nyme : 1, Tdmitis furcata. 

 furcata 1 . Brown . 6, S. Her. P. I Trinidad . 1824 



Pterosp^rmum, Schreber. From pteron, a wing, 

 and sperma, a seed ; the seeds are winged. 

 Linn. 16, Or. 7, Nat. Or. Sterculiacece. 

 Large-leaved trees. They thrive in a mixture 

 of peat, loam, and sand ; and cuttings not 

 deprived of their leaves will root in sand, 

 under a glass, in a moderate heat. 



acerifolium . Whito . 8, S. Ev. T. 10 E. Indies . 1700 



can&cens . White . 8, S. Bv. T. 12 E. Indies. 1823 



lancesefblium Whito . 8, S. Ev. T. 12 E. Indies . 1820 



platanifblium Whito . 8, S. Ev. T. 12 E. Indies . 1820 



S ttturn 1 *" ! Whifca ' S ' S ' Et ' T - 10 R Indies ■ 1820 

 suberifblium. White . 9, S. Ev. T. 10 B. Indies. 1783 



Pterostegia, Fischer and Meyer. From pteron, 

 a wing, and stegos, covering ; involucrum 

 winged. Linn. 17, Or. 3, Nat. Or. Polyga- 

 lacece. This species may be grown in any 

 common soil. , 

 dryniai-ioldes . Green . 6, H. A. J California 1836 



PTEROSTfaMA, Bentham. From pteron, a wing, 

 and stigma, in reference to its being generally 

 girded by a wing. Linn. 14, Or. 2, Nat. Or. 

 Scmphulariaceai. A plant of no particular 

 merit. It succeeds in the stove or warm 

 greenhouse, and is easily increased by cut- 

 tings. Synonymes: 1, Gerardia, glutinosa, 

 digitalis chin&nsis. 

 gvandiflbra 1 . Pur. blue 6, G. Her. P. % China . 1845 



Pter(5stylis, M. Brown. From pteron, a wing, 

 and stylos, a style ; in allusion to the column 

 being winged at the top. Linn. 20, Or. 1, 

 Nat. Or. Orchidacea. Interesting plants. For 

 culture and propagation, see Prasophyllum. 

 acuminata . Pa. yel. . 5, G. Ter. £ N. Hoi. . 1826 

 Banksii . . Yel. wht. 12, G. Ter. 1} N. Zeal. . 1827 

 barbata . . Yellow . 8, G. Ter. 1 Swan E. 

 conoinna . . Pa. yel. . 5, G. Ter. | N. Hoi. . 1824 

 cucullata . . Pa. yel. . 6, G. Ter. J V. D. L. 1823 

 curta . . .Pa. yel. . 5, G. Ter. J N. Hoi. . 1822 

 gibbbsa . . Pa. yel. . 6, G. Ter. 1 N. Hoi. . 1824 

 grandiflbra . Pa. yel. . 6, G. Ter. i N. Hoi. . 1824 

 longifblia . Pa. yel. . 7, G. Ter. lj N. Hoi. . 1S23 

 nutans . . Pa. yel. . 7, G. Ter. £ N. Hoi. ^. 1823 

 obtusa . . .Pa. yel. . 7, G. Ter. 1 N. Hoi. . 1810 

 ophioglossa . Pa. yel. . 5, G. Ter. 1 N. Hoi. . 1826 

 refl&a . . Pa. yel. . 7, Gi Tor. | N. Hoi. . 1826 

 pyraSnidalis . Yellow . 4, G. Ter, | Swan B. 

 scabra . . Yellow . 4, G. Ter. | Swan R. 

 vittata . ; Striped . 4, G. Ter. J Swan R. 



Pterotheca, De Candolle. From pteron, a 

 wing, and theca, a spore-case. Linn. 19, Or. 

 1, Nat. Or. Asterdcece. Sow the seeds in any 

 common garden soil. 



nemausensis . Yellow 6, H. A. 1 S. Eur. . 1794 

 H H 2 



