HAW 



[404 ] 



HEA 



ere'cta (erect-pearl}. 4. August. 



expa'nsa (expanded). 1. August. 



grana'ta (grained). 



hy' 



H. claripe'rlu (clear-pearled). . June. 1824. 



coarcta'ta (compressed), . August. 1821. 



conci'nna (neat). . August. 1823. 



cordifo'lia (heart-leaved). . June. 1817. 



cu'rta (short-twisted). . July. 1816. 



cuspida'ta (spine-pointed). \. August. 



1819- 



cymbifo'rmis (boat-formed). 3- June. 1795. 



denticula'ta (small-toothed). . August. 



1819. 



1818. 

 pane). 1. ugust. 1795. 



fascia 1 'tu (banded-pear/). $. August. 1818. 



ma'^or (larger). . July. 1820. 



July. 1/35, 

 y'brida (hybrid). $. June. 1821. 



indura'tu (h&rd-branchy). . June. 1820. 



lee'te-vi'rens (lively-green). $. August. 1819. 



ICE' vis (smooth-white-edged). $. August. 



1820. 



li'tnpida (limpid). . August. 1819. 



marguriti'fera (pearl-bearing). 1. July. 



1739- 



mi' nor (lesser-pearl). 1. June. 



mira' bills (admirable. Cushion}, 2- July. 



1795. 



multifa'ria (many-sided). $. July. 1824. 



mucrona'ta (sharp-pointed). $. July. 1820. 



mu'tica (blunt-cushion). . July. 1820. 



ni'gricans (granulated-black}. . August. 



1822. 



ni'tida (shining). 1. July. 1825. 



obtu'sa (sjiiall-bliint). . June. 1824. 



pa'llida (pale green} . $. June. 1820. 



planifo'lia (flat-leaved). . April. 1824. 



papilto'sa (nippled). 1. June. 1820. 



semipupillo'sa (half-nippled). Ij. 

 June. 1820. 



pa'rva (small). . May. 1821. 



pseu'do-tortuo'sa (slightly-twisted-rmM#M- 



lar}. 1. July. 1818. 



pu'mila (dwarf-cobweb). 1. May. 1752. 



ru'dula (file -surfaced -pearl). l. May. 



1805. 



-- aspe'rior (rougher). 1. August. 1820. 

 -- la'vior (smoother). 1. August. 1825. 



pluriperla'ta (many - pearled). 1. 



August. 1820. 



rami'fera (branch - bearing). . August. 



1821. 



recu'rva (curled-back- leaved). 1. August. 



1795. 

 Reinwu'rti (Reimvart's pearl). $. June. 



1820. 



reticula'ta (netted). . June. 1794. 

 retu'sa (bent-back-etw/tion). 1. June. 1/20. 



sca'bra (rough). &. June. 1818. 



semimargariti'fera (half-pearl-bearing). 1. 



April. 1819. 



ma'jor (larger). 1. April, 



1819. 



April. 181Q. 



multipcrla'ta 

 April. 1810. 



(many 



mi'nor (smaller). 1. I 



pearled). 1. 



scmiglabra'ta (half-smoothed). 3. June, 



1811. 



-seta'ta (bristle-leaved). I. June. 1820. 

 -- ma'jor (larger). 1. July. 1820. 

 -- me 1 din (mediate). 1. July. 1820. 



- -- ni'gricans (blackish). 1. July. 1820. 



so'rdida (sordid). 4. July. 1820. 



H. tessclla'ta (dark-checkered). $. June. 1823. 



torqua'ta (collared). 1. August. 1823. 



torte'lla (slightly- twisted). . July. 1817- 



tortuo'sa (twisted). 1. July. 1/94. 



translu'cens (transparent). $ June. 1/95. 



tu'rgida (swollen-cushion). $. August. 1819. 



veno'sa (veiny). ^. June. 1820. 



vire'scens (greenish). 1. August. 1819- 

 mi'nor (smaller). . August. 181Q. 



visco'sa (clammy). 1^. June. 1727. 



HAWTHORN. Urata'yus. 



HAWTHORN-BUTTERFLY. Pie' r is. 



HAYLO'CKIA. (Named after Mr. 

 Haylock, gardener to Dr. Herbert. Nat. 

 ord., Amaryllids [Amaryllidacete]. Al- 

 lied to Cooperia.) 



A small bulb, with very narrow leaves and 

 one flowered scape. Offsets ; sandy loam, with 

 a little peat and leaf-mould; requires the pro- 

 tection of a frame, or to be deep planted in a 

 dry place in winter. 



H.pusi'lla (dwarf). . Straw. September. 

 Buenos Ayres. 1829. 



HAZEL. Co'ryliis aveUa'na. 



HEADING, or, as it is also termed, 

 Cabbaging or Loaviny, is an inaptitude 

 to unfold the central leaves, character- 

 izing the various members of the Cab- 

 bage tribe. They have their centre or 

 bud composed of a larger number of 

 leaves than usual, and these, in some 

 instances, are so complexly combined 

 that the plant has not sufficient power 

 to force them open to permit the pro- 

 trusion of the seed-stem. The close- 

 ness of the heading is regulated by the 

 exposure to the light. In a shady 

 situation all the leaves are required to 

 elaborate the sap, on account of the 

 deficient light rendering each less 

 active ; therefore they open as they are- 

 formed. In a free exposure a few 

 leaves are able to effect the requisite, 

 decomposition ; and hence the reason 

 why cabbages always have " harder 

 hearts " in summer than in spring or 

 autumn, when the light is less intense. 



HEADING-DOWN is cutting off entirely, 

 or to a considerable extent, the branches 

 of a tree or shrub a process not rashly 

 to l)e resorted to, and adopted only to 

 reduce them when the plant seems 

 declining in vigour, or has attained an 

 undesirable size. . 



HKABT'S-KASE. See Panxi/. 



HKAT is the prime agent employed 

 by the Almighty Creator to call vege- 

 table life into existence, to develope 



