GYP 



[ 458 ] 



HAB 



G. spino'sa (spiny). Pink. June. Persia. 183;. 



Steve'ni (Steven's). 2. White. July. Iberia. 



1822. 



Stru'thium (Struthium). 2. White. July. 



Spain. 1729. 



tenuifo'lia (fine-leaved) . 1 . Red. July. 



Caucasus. 1824. 



GYPSUM, or Plaster of Paris, is a sul- 

 phate of lime, composed of Sulphuric 

 acid, 43 ; lime, 33 ; water, 24. It has been 

 employed advantageously as a manure 

 to clover, the turnip, and potato, at the 

 rate of 3 cwt. per acre. Potato sets are 

 frequently rolled in it when pulverized. 

 It has been recommended to be sprinkled 

 in stables, and to be mixed with dung-- 

 hills, " to fix the ammonia," as it is 

 popularly termed. All the ammonia 

 lost in fumes from a dunghill might be 

 more readily and as cheaply restored 

 to it by mixing with it, when dug into 

 the soil, a little of the ammoniacal 

 liquor from the gas works. 



H. 



HABENA'RTA. (From habena, a rein, 

 referring to the long strap-shaped spur. 

 Nat. ord., Orchids [Orchidaceee]. Linn., 

 2Q-Grynandria I-Monandria. Allied to 

 Gymnademia.) 



Some will grow in peaty soil in the open 

 border, if kept a little protected, and somewhat 

 dry in winter; others are stove orchids, requir- 

 ing peat and loam, and treatment similar to a 

 Bletia. Divisions of the root. Summer temp., 

 60 to 80 ; rest period, in winter, 50 ; and 

 when starting into flower, 70. 



HARDY. 



H. bifo'lia (two-leaved). White. June. Bri- 



tain. 

 pro'cera (tall-stemmed). 2. Green. Au- 



gust. North America. 1822. 



H. ala 1 to, (winged). . Yellow. June. West 

 Indies. 1823. 



corda'ta (heart-shaped). Green. Madeira. 



1830. 



ca'ndida (white-flowered). 1. White. July. 



Sierra Leone. 1844. 



fla'va (yellow). Yellow. July. Australia. 



1823. 



gigante'a (gigantic). 4. Green, white. 



July. Bombay. 1834. 



- Goodyeroi'des (Goodyera-like). 1. White. 



December. Bombay. 1834. 



gra'eilis (slender). 1$. Yellow. July. 



East Indies. 1823. 



lepto'ceras (slender- horned). l. Green, 



yellow. October. 1824. 



Linde'nii (Linden's). White. August. 



Caraccas. 



H. longicau'da (long-tailed). Greenish white. 

 Demerara. 1830. 



macro' ceras (large-horned). 2. White. 



June. West Indies. 1825. 



maculo'sa (small-spotted). White. Sep- 



tember. Nerida. 



marginu'ta (bordered). . Yellow. July. 



East Indies. 1822. 



membrana'cea ( skinny ). July. Sierra 



Leone. 1826. 



ochroleu'ca (yellowish- white). . Pale 



yellow. June. New Holland. 1824. 



There are several other species. 



HABIT is the appearance or mode of 

 growth. Thus a Verbena may be of 

 straggling or shrubby compact habit. 

 This habit is much influenced by soil 

 and cultivation. Thus Buxus semper- 

 virens in a poor soil is dwarfish, but in 

 a rich soil becomes tree-like. The term 

 habit is applied to the power a plant 

 possesses of vegetating earlier or later, 

 when once accustomed to do so. Thus, 

 a vine once forced to break early will 

 retain the habit of doing so the follow- 

 ing year, though not forced. 



HABITAT. The native place of a 

 plant. 



HABRA'NTHUS. (From habros, deli- 

 cate, and anthos, a flower. Nat. ord., 

 AmaryUids [Amarylliclacese]. Linn., 0- 

 Hexandria l-Monoyynia, Allied to 

 Phycella and Zephyranthes.) 



The Habranthi are natives of dry gravelly 

 places, and are half-hardy with us, but retain- 

 ing their leaves in winter ; if in an open border, 

 they require a glass covering ; they flower with- 

 out the leaves after a period of rest. Offsets, 

 and seeds which are produced often freely, and 

 which should be sown when gathered, or care- 

 fully saved until the following spring, and then 

 have the assistance of a hotbed ; sandy loam 

 and a little peat. 



H. angu'stus (narrow). $. Red. August. 

 Brazil. 1822. 



Anderso'ni (Anderson's). 1. Yellow, red. 



May. Mount Video. 1829. 

 au'reus (golden). Yellow. June. 



South America. 1829. 

 cu'preus (coppery). Brown. June. 



South America. 1829. 

 Texa'nus (Texian). 1. Yellow. 



Texas. 1834. 



Bugno'ldi (Bagnold's). 1. Yellow. Octo- 



ber. Chili. 1829. 



bi'fidus (two-cleft), j}. Pink. June. Buenos 



Ayres. 1823. 



cn'ncolor (one-coloured-^oweraZ). Straw. 



April. Mexico. 1844. 



gracilifo'lius (slender-leaved). . White. 



January. South America. 1821. 



Boothia'nus (Booth's). . Pink. 



October. Buenos Ayres. 1836. 



Hespe'rius (western). Straw. June. South 



America. 1807. 



