OREODOXA 



A. Z/eaf-segments not tcrhikled or wavy. 

 B. Trunk swollen at or above the middle. 



, HBK. ROYAL PALM. Fig. 1592. Caudex 40-60 

 ft. high: leaf segments 2% ft. long, 1 in. or less wide, 

 linear, acuminate: fr. ovoid, Yz in. Everglades of Fla., 

 Cuba, Antigua. G.F. 9:155. S.S. 10:505. G.C. III. 

 17:239; 27:297. A.F. 12:311. G.M. supp. Oct. 1, 1892. 



BB. Trunk not swollen at the middle. 

 oleracea,Mart.(4r<?ca olerdcea,J&cq.). CABBAGE PALM. 

 Caudex 100-120 ft. high : leaf-segments lanceolate-linear, 

 acuminate, 3 ft. long, 1% in. wide: fruit obovoid-ob- 

 loug, % in. West Indies. Cult, in S. Fla. 



AA. Leaf-segments wrinkled and wavy. 



Sancdna, HBK. Stem 120-150 ft., smooth, glabrous, 

 grayish black: Ivs. pinnate; Ifts. membranaceous : 

 wood very hard, used in building houses. Colombia. 

 Cult, only in S. Calif. Franceschi says it has brownish 

 leaf-stalks and is more tender than the other 2 species. 



JARED G. SMITH. 



OREOPANAX (i.e., mountain Panax). Araliacece. 

 Some eighty species names have been referred to this 

 genus, but the number of species is probably not one- 

 half this number. In the trade, the species of Oreo- 

 panax are usually known as Aralias, but in the Aralia 

 tribe the petals are imbricate in the bud, whereas in 

 Oreopanax they are valvate. The Oreopanaxes are tropi- 

 cal American trees and shrubs, with simple or compound 

 entire or toothed thick Ivs., and fls. in dense heads 

 which are arranged in racemes or panicles: calyx with 

 minute or obsolete limb : petals 4-7, usually 5, the sta- 

 mens of the same number and with ovate or oblong 

 anthers: ovary 3-7-loculed, the styles rather long and 

 bearing a flat, not thick, stigma: fr. globose and berry- 

 like. Few species of Oreopanax are known in cultiva- 

 tion. They are hothouse subjects, requiring the treat- 



ORIGANUM 



1173 



1592. Royal Palm, Oreodoxa regia. 



ment given tropical Aralias. Harms (Engler & Prantl, 

 Pflanzenfamilien) divides the species into 3 groups, 

 Ivs. digitate, Ivs. lobed, Ivs. not lobed. The species 

 described beyond are those which are now most often 

 mentioned in gardening literature, but the writer has 

 seen only the first in American collections. 



A. Lvs. all simple. 



reticulatum, Decne. & Planch. (Aralia reticulata 

 Willd.). Fig. 1593. Small tree, with alternate, thick' 

 entire, oblanceolate Ivs. 12-18 in. long, somewhat revo- 

 lute on the margin, strongly alternate-veined and re- 

 ticulated with shades of green: fl. -heads spherical, 

 nearly or quite an inch in diam. S. 

 Arner. A handsome plant for foliage. 



AA. Some of the Ivs. strongly digi- 

 tately lobed or angled. 



Sanderianum, Hemsl. Shrub or small 

 tree, with habit of Fatsia papyrifera : 

 Ivs. glabrous, thick 

 and glossy, 1 o n g- 

 stalked, triangular- 

 ovate in outline, on 

 young shoots deeply 

 3-lobed but on flow- 

 ering plants cordate 

 and entire: fls. mi- 

 nute, in small, glo- 

 bose heads, which are 

 arranged in racemose 

 panicles. Guatemala. 

 G.C. III. 13:451. A. 

 F. 8:1283. 



AAA. Some or all of 



the Ivs. digitate. 



Epremesnili a n u m , 

 Andre. Shrub of striking habit 

 Ivs. large, long-stalked, digitate, 

 the leaflets 7-9, oblong or lanceo- 

 late and usually tapering at 

 either end, the middle ones deep- 

 lobed: fl. -heads in a spike. Ori- 

 gin unknown; perhaps a garden 

 form of O. dactylifolium, Hort., 

 in which each of the 7 lobes is 

 usually lobed. R. H. 1884, pp. 

 320,321. Gn. 29, pp. 354, 355; 30, 

 p. 447. Named for Count Epre~- 

 mesnil, Dieppe, France. Well- 

 grown plants resemble Fatsia 

 Japonica (Aralia Sieboldii). 



Andre anum, March al. Shrub, 

 with variable foliage: Ivs. ellip- 

 tic to roundish, stalked, the lower 

 surface and petioles red-tomen- 

 tose, varying from angled to deeply digitate and the 

 divisions pinnatifid: fl. -heads globular, in a terminal 

 raceme. Ecuador. R.H. 1882, pp. 524, 525. 



Thibautii, Hook. Small tree, stellate-pubescent on 

 the young parts: Ivs. long-stalked, 5-7-foliolate, the 

 leaflets lanceolate or oblanceolate, entire, 6 in. or less 

 long, dark green: fl. -heads % in. in diam., in a terminal 

 raceme 1 ft. long. Mex. B.M. 6340. 



pedunculatum was once listed in Calif., with follow- 

 ing description: "Ivs. palmate, tinged with red; makes 

 a fine foliage plant. Guatemala." It turns out to be 

 Kcelreuteria paniculata. L. jj^ g. 



ORIGANUM (ancient Greek name said to mean delight 

 of mountains). Labiatce. This includes several plants 

 known as Marjoram which are fully described below 

 from the popular and horticultural points of view. 

 Botanically these plants are closely allied to the thyme, 

 but the fls. of Marjoram are borne in heads surrounded 

 by an involucre, while those of thyme are borne in few- 

 fld. whorls which are axillary or spicate above. 



Origanum is a genus of about 25 species of subshrubs 

 and herbs mostly natives of the Mediterranean region. 

 Whorls 2-fld., rarely 6-10-fld., crowded into globose or 

 oblong spikelets: bracts colored and larger than the 

 calyx, or green and smaller than the calyx; calyx va- 

 rious, 5-toothed or 2-lipped: corolla 2-lipped. 



Authorities differ as to whether the common Pot Marjo- 

 ram is O.vulgare orO.Onites; Vilmorin's Vegetable Gar- 

 den holding: to the first opinion, while Nicholson's Dic- 

 tionary of Gardening and J. M. Thorburn&Co. take the 

 latter. The two plants are very distinct, as the following 



1593. 

 Oreopanax reticulatum. 



