HUM 



HUM 



against the wall, and others planted forward be- 

 tween these- and the glasses, they may properly 

 be considered as forcing-houses. 



In proper Hot-walls, as such as have narrow 

 inclosures of glass from four to five or six feet 

 in width, containing only one range of trees, 

 they may be trained towards the wall upon trel- 

 lis-work, where there is a range of flues imme- 

 diately next the wall; but where all the flues are 

 ranged forward, the trees may be trained close 

 to the wall. See Forcing Frame. 



In the annexed plate is seen the ground-plan, 

 section, and elevation of an improved wall of 

 this kind, in which fig. 1. is the ground plan, 

 tig. 2. longitudinal section, and fig. 3. trans- 

 verse section. 



HOUND'S-TONGUE. SeeCvNOGLOssuM. 



HUMBLE PLANT. See Mimosa. 



HUMULUS, a genus containing a plant of 

 the hardy twining perennial kind. 



It belongs to the class and order Dioecia Pe/t- 

 tandria, 3nd ranks in the natural order Sca- 

 h idee. 



The characters are: that in the male the calyx 

 is a five-leaved perianthium : leaflets oblong, 

 concave, blunt: there is no corolla : the stami- 

 na have five capillary filaments, very short : an- 

 thers oblong : in the female the calyx is an uni- 

 versal involucre, four-parted, sharp : partial 

 four-leaved, ovate, eight-flowered : to each 

 flower a perianthium, one-leafed, ovate, very 

 large- outwardly flat on one side, converging at 

 the base : there is no corolla : the pistillum is a 

 very small germ: styles two, subulate, patulous: 

 stisrmas sharp : there is no pericarpium : calyx 

 inclosing the seed at the base : the seed round- 

 ish, covered with a coat. 



The species is H. Lvpulus, the Hop. 



It has a perennial root : the stems weak and 

 twining, not climbing by tendrils, but ascend- 

 ing a prop, trees or shrubs in a spiral, always 

 with the sun, that is, from right to left, or 

 from cast to west by the south : these stems are 

 angular, striated, and rugged, with very minute 

 prickles : the leaves opposite in pairs (or some- 

 times in threes), the upper ones heart-shaped, 

 the lower three-lobed (or sometimes five lobed), 

 serrate, dark green above, pale green beneath, 

 on long petioles; which, as well as the leaves 

 themselves, are rugged with minute prickles : 

 the stipules two or four, cordate, bifid at each 

 joint : the flowers greenish yellow ; the males 

 on branched peduncles ; the females on a di- 

 stinct plant, pedunclcd, in pairs, in form of a 

 cone or strobile, composed of ovate, membra- 

 naceous scales, tubular from being rolled in at 

 the base, and two-flowered, each containing 

 one (sometimes two) seed, of a brown bay co- 

 7 



lour, of a globular form a little flatted, sur- 

 rounded with a sharp rim, and compressed at 

 the tip. It is a native of most parts of Europe, 

 flowering in June. 



There are Hop plants, which bear male 

 flowers only, growing in long clusters ; and 

 Hop plants which bear female flowers only, 

 produced in roundish, scalv, leafy clusters. The 

 latter is the only sort cultivated, and which the 

 Hop planters distinguish into, Early White, 

 Long White, Oval, "and Square Garlick Hops. 



Culture. These plants are increased by cut- 

 tings of the suckers immediately from the roots 

 within the earth, every part of which will grow, 

 making them six or seven inches long, each 

 having three or four buds or eyes, for emitting 

 shoots. They may be taken from the roots of 

 the plants of any old plantation. Care should 

 be taken to choose good sorts, and such as are 

 good bearers, trimming each set from all parts 

 of the old vine, and any hollow or bad part. 



They may also be propagated by layers of the 

 young shoots in summer, cutting oft' their tops 

 at the time of laying ; they will soon root and 

 form sets for next spring. 



The plants or sets should be all of a sort, not 

 early, middle, and late kinds planted together, 

 which, by ripening at different times, would 

 occasion great trouble in gathering the pro- 

 duce. 



The Early White Hop, which comes first, is 

 a fine Hop, but an indifferent bearer. The Long 

 White Hop comes next, and is a good bearer. 

 The Square Garlick Hop comes latest, but is 

 a plentiful bearer, though a coarser Hop than 

 the others. 



The ground for this purpose should be well 

 dug over, and rendered perfectly fine in the 

 mould, as well as smooth and level on the sur- 

 face. 



When the land is thus prepared, having the 

 sets ready, proceed to plant them by line, in 

 straight rows, six or eight feet distant, and the 

 same distance in each row, in the quincunx 

 order. A long line should be provided to reach 

 quite across the ground, on which, at every six 

 or eight feet, a knot or small bit of rag should 

 be tied"; then stretching the line, and having a 

 quantity of sharp-pointed sticks, place one 

 down at each of the marks, and at each a hole 

 should be dug a foot and a half wide, or more 

 and filled up again with the earth and some rot- 

 ten dung laid on for the purpose, raising it into 

 a sort of hillock, for the reception of the plants 

 which should be planted four or five in each 

 by means of a dibble, putting them in within a 

 little of the tops, one in the middle, and the 

 others at equal distances round it, pressing the 



