HUG 



444 ] 



HUR 



H. clavi'gera (club-bearing), . Yellow-striped 

 September. 1795. 



cri'spa (curled). $. 



hu'milis (humble), . Yellow-striped. Sep- 



tember. 1/95. 



lentigino'sa (freckled). . Yellow-striped. 1/95 



ocella'ta (eyed). $. Yellow-striped. September 



reticula'ta (netted). . Pink-striped. August, 



1793. 



venu'sta (graceful). . Yellow-striped. June, 



1795. 



HUGE'LIA. (Named after Baron Hug el 

 of Vienna. Nat. ord., Phloxworts [Pole- 

 laomacese]. Linn., 5-Pentandria l-Mono- 

 gynia. Allied to Gilia.) 



Hardy annuals, from California. Seeds sown in 

 open border, in March ; common garden-soil. 

 H. densiflo'ra (crowded-flowered). J. Blue. June 

 1833. 



elonga'ta (lengthened). . Blue. June. 1833. 



lana'ta (woolly), g. Light blue. July. 1847- 



lu'tea (yellow). 4. Yellow. June. 1833. 



virga'ta (twiggy). . Blue. June. 1833. 

 HUMA'TA. (Probably from humatus, in- 

 terred; the stems being deep in the 

 earth. Nat. ord., Polypods [Polypodia- 

 cese]. Linn., 2^-Cryptogamia 1-f'ilices.) 



Stove Ferns, with brownish-yellow spores. Di- 

 vision ; peat and loam. See FERNS. 

 H. angusta'ta (narrow). April. Singapore. 



heterophy'lla (various-leaved). April. Samaria. 



pectina't a (comb-like). April. Isle of Luzon. 



peda'ta (double-lobed). May. E. Ind. 



HUMBLE PLANT. Mimo'sapu'dica. 



HU'MEA. (Named after Lady Hume. 

 Nat. ord., Composites [Asteracea?]. Linn., 

 IQ-Syngenesia 1-JEqualis.) 



Greenhouse biennial. Sow in heat, in spring ; 

 prick out and grow under glass; place out of 

 doors in the heat of the summer ; house in good 

 time in the autumn; shift into larger pots as 

 wanted, and transfer to its blooming-pots in 

 April, or plant out in good, rich soil in May. 

 Single plants in a sheltered corner have a fine 

 effect. 



H. e'legans (elegant). 6. Red. July. N. S. Wales. 

 1800. 



HU'MTTLUS. The Hop. (From /mwtts,the 

 ground; creeping on the ground if not 

 supported. Nat. ord., Hempworts [Canna- 

 binacese]. Linn., 22-Dicecia 5-Pentandria.} 



Hardy perennial twiner. Seeds and divisions in 



r'ng ; deep, loamy soil. It is useful for summer 

 le, as it grows very quick. 



H. lu'pulus (common. Hop). 15. Yellow. July. 

 Britain. 



variega'tus (striped- Jeaved). 15. Yellow. 



July. Britain. 



HU'MUS. When the putrefaction of 

 dead plants is completed, there remains 

 a soft, black mass, known as vegetable 

 mould, or humus. One hundred parts of 

 the humus of wheat straw have of ex- 

 tractive, or apotheme, rather more than 

 twenty-six parts, and the residue is lime. 



peroxide of iron, phosphate of lime, and 

 carbonaceous matter. This apotheme is 

 identical with the humic acid of Liebig, 

 the ulmic acid of Braconnot, and the geic 

 acid of Berzelius. It contains carbon, 

 46.6; hydrogen, 20.0; oxygen, 33.4. It 

 was once believed, indeed, is still believed 

 by a few men of science, that this apo- 

 theme is the immediate fertilizing com- 

 ponent of organic manures, being soluble 

 under some circumstances, and entering 

 at once into the roots of plants, dissolved 

 in the moisture of the soil. But every 

 relative research of more modern che- 

 mistry is against this conclusion ; and it 

 is now tolerably certain, that a chief nu- 

 tritive portion of vegetable manures is 

 their carbon converted into carbonic acid, 

 absorbed either in solution with the 

 earth's moisture, or in gaseous form by 

 the roots. 



HuNGAKiANLoTUS.AfywpA^a thermdlis. 



HUNNEMA'NNIA. (Named after J. Hun- 

 nemann, a botanical agent. Nat. ord., Pop- 

 py worts [Papaveraceas]. Linn., 13-Poly- 

 andria \-Monogynia.) 



Greenhouse herbaceous perennial. Seeds in 

 spring ; rich soil ; will bloom the second year in 

 greenhouse treatment, or may be kept over the 

 winter in a dry, cold pit. 



H.fumarieefo'lia (fumaria-leaved). 2. Yellow. 

 Mexico. 1827- 



HUNTLE'YA. (Named after the Eev. 

 Mr. Huntley, a zealous collector of plants. 

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

 20-Oynandria l-Monandria. Allied to Zy- 

 gopetalum.) 



Stove orchids. Slips of shoots, and dividing the 

 plant ; fibry peat, &c. ; grown in a high, moist 

 temperature. Summer temp., 60 to 90 ; winter, 

 55 to 60. 



H. melea'gris (Guinea-hen). 1. Yellow, brown. 

 July. S. Amer. 1836. 



sessilifln'ra (stalkless-flowered). Violet. Guiana. 



1835. 



viola 'cea (violet - coloured). Violet. June. 



Guiana. 1837. 



HU'KA. Sand-box-tree. (The native 

 name. Nat. ord., Spurgeworts [Euphor- 

 cea}]. Linn., 21-Moncecia Il-Monadel- 

 phia. Allied to Hippomane.) 



Stove evergreen trees, with whitish-yellow flow- 

 _.s. Seeds, and cuttings of ripe young shoots 

 under a bell-glass, in sandy soil, and in heat ; rich 

 oam and peat. Summer temp., 60to 80 ; winter, 

 50 to 55. 



H. crefpitans (rattling. Equal-toothed). 13. S. 

 Amer. 1733. 



stre'pens (sounding, Unequal-toothed^. 12. 



S. Amer. 



HUBBLE s of iron are the most eligible 

 modes of fencing, whether for perma- 



