CHAP. CXII. TAXA'CEJE. 2065 



4. E. FRA'GILIS Desf. The fragile Ephedra. 



Identification. Desf. Fl. Alt., 2. p. 372. ; N. Du Ham., 3. p. 19. 



Synonymt-s. E. cretica Tour. Cor., '>:>., Vail. Her.; /Jquisetum montanum oretiouni Alp. Ex. 141. 



The Sexes. The female is figured in Alp. Exot., t. 141. 



Engraving. Alp. Exot., 141. 



Spec. Char., Sfc. Catkins sessile ; the male ones aggregate. Articulations of the branches separable. 

 (Desf.} A shrub, between 2 ft. and 3 ft. high, with cylindrical branches, slightly striated ; a native 

 of Spain, and of the sea coast of the south of France, but not yet introduced into Britain. 



* 5. E. AMERICA'NA Willd. The American Ephedra. 



Identification. Willd. Sp. PL, 4. p. 860. ; 



Kunth in Humb. et Bonpl. Nov. Gen. 2. 



p. 2. ; Rich. Mt'm. Conif., p. 21. 

 The Sexes. Both are on the same plant, as 



described and figured by Richard. 

 Engravings. Rich. Mem. Conif., t. 29. f. 2. ; 



and our fig. 1980. 

 Spec. Char. Stems erect Branches and 



branchlets crowded, erect, round, slender. 



Leaves consisting of a sheath, or 2 semi- 

 oval acuminate scales, spreading or relaxed, 



and in the fertile branches somewbat dis- 

 tinct ; in the sterile ones adhering, so as to 



form a short tube. Flowers monoecious : 



male and female on the same branchlets, w 



but from different joints ; those of the male 



inferior and fewer in number ; heads of 



flowers crowded round one joint, aggregate, subsessile, on short stalks. (Rick.} Found by Hum- 



boldt and Bonpland in Quito, at an elevation of almost 7000 ft. ; flowering in January. Not yet 



introduced, though probably quite hardy. 



CHAP. CXII. 



OF THE HARDY LIGNEOUS PLANTS OF THE ORDER TAXA^CEJE. 



TVxus Tourn. Flowers unisexual, axillary ; those of the two sexes upon 

 distinct plants. Male flower. It consists of anthers upon short pedicels, 

 at the top of a column that has imbricate scales at the base : these had en- 

 veloped the column and anthers before they were protracted. The anther 

 consists of 4, 5, 6, or rarely more, 1-celled lobes, attached to a connectivum, 

 whose tip is a horizontal shield, lobed at the edge ; its lobes corresponding 

 in number and place with those of the anther, and covering them : the cells 

 open longitudinally. Female flower. An erect ovule, perforate at the tip ; 

 and an unobvious annular disk at its base; and, exterior to this, there 

 are investing imbricate scales. Fruit. The disk, at the base of the ovule, 

 becomes a fleshy open cup, that surrounds the lower part of the seed, which 

 is exposed in the remaining part : the scales are at the base of the cup, 

 outside : the seed is like a nut. Leaves evergreen, linear-acute, rigid, more 

 or less 2-rowed in direction. (Nees ab Esenb.; and J. D.'s observation.) 



SALISBU N R/^ Smith. Flowers unisexual ; those of the two sexes upon dis- 

 tinct plants. Male. Flowers in tapering, decurved, bractless catkins, which 

 are borne several from one bud ; and situated outwardly to a tuft of leaves 

 borne from the centre of the same bud. Flowers many in a catkin, each 

 appearing as a stamen only, and consisting of a short filament-like stalk ; 

 and two cases of pollen attached very near to its tip, and a scale that ter- 

 minates it. Female. Flowers borne from a bud, from which leaves are 

 produced also ; and on peduncles, either singly, or several on the pedicels 

 of a branched peduncle. Flower seated in a shallow cup, formed of the 

 dilated tip of the peduncle or pedicel, and consisting of a rather globose 

 calyx, contracted to a point, and then expanded into a narrow limb, and 

 including an ovary. The calyx is fleshy and persistent, and becomes a 

 drupaceous covering to a nut, which is rather egg-shaped, and very slightly 

 compressed. Embryo straight, cylindrical. Cotyledons two, very long. 

 Species 1 ; a native of Japan ; a large tree, with a lofty straight stem. 

 Leaves with long petioles ; and disks tranversely rhomboidal, divided part of 

 the way down into 2 or more lobes ; and coriaceous and striated ; in groups, 

 or alternately. ( Richard, Smith, Watson, Jacquin, and observation.) 



6s 2 



