AGO 



[12] 



ACR 



A. eu'lophum (well-crested). l\. Pale yellow. 

 June. Caucasus. 1821. 



grandifiaf rum (large-flowered). 1$. Pale 



yellow. July. Jura. 1821. 



hi'spidum (rough-haired.) 2. Pale vellow. 



June. Siberia. 1823. 



Jacqui'ni (Jacquin's). \\. Pale yellow. 



June. Austria. 1800. 



Lama'rckii (Lamarck's). 2. Pale yellow. 



July. Pyrenees. 1817. 



laxiflo'rum (loose-flowered). 3. Pale yel- 



low. July. Switzerland. 1823. 



lupici'dum (wolf s-bane). 2. Pale yellow. 



July. Europe. 1821. 



lyco'ctotmm (wolf s-bane) . 3. Purple. July. 



Alp. Eur. 1596. 



macrop/iy'llum ( large-leaved) . 2. Pale 



yellow. July. 



moldu' cicum (Moldavian). 5. Purplish. 



August. Moldavia. 1830. 



nemorn'sum (grove). 2. Pale yellow. July. 



Caucasus. 1823. 



Nutta'llii (Nuttall's). 5. Pale blue. Aug. 



N. America. 1829. 



ochra'nthum (pale-flowered). 4. Yellow. 



August. Russia. 1834. 



ochrolett'cum (yellowish-white). 3. Light 



yellow. July. Caucasus. 1794. 



ova'tum (ovate-leaved). 21. Purple green. 



June. Cashmere. 1839. 



Palla'sii (Pallas's). 2. Pale yellow. Julv. 



Siberia. 1821. 



pyren.i'icum (Pyrenean). 4. Yellow. June. 



Pyrenees. 1739. 



rrefctum (upright). 3. Pale yellow. July. 

 Europe. 1824. 



rubicu' ndum (reddish). 2L Purple. Julv. 



Siberia. 1819. 



septentriona'le (northern). 4. Blue. July. 



N. Europe. 1800. 



Stoerckia' num (Stoerck's). 4. Blue. Aug. 



Austria. 1824. 



therio'phonum (beast's-bane). 2i Pale 



yellow. June. Europe. 1824. 



trago'ctunum (goafs-bane). 2. Pale yel- 



low. July. Switzerland. 1822. 



version' lor (various-coloured). Blue and 



white. August. Siberia. 1820. About 

 the best. 



Vulpa'ria (fox-bane). 3. Pale yellow. July. 



Alp. Eur. 1821. 



A'CORUS. (From a, privative, and 

 kore, the pupil of the eye ; referring to its 

 medical qualities. Nat. ord., Orontiads 

 [Orontiaceae]. Linn., -Hexandria 1- 

 Moiwgynia). A small genus of herbaceous 

 plants, having sword-like leaves. A. 

 Galamm is a useful medicinal plant a 

 native of our marshes; but now used 

 chiefly by perfumers for the fragrance of 

 its roots. Hardy marsh perennials. 

 A. Ca'lamus (sweet-flag). 2. June. Britain. 



grami'nem (grass-leaved). . Feb. China. 



terre^m'(land). 1. June. China. 1822. 

 ACRE is the usual land measure in 



Great Britain. The Statute Acre through- 



out the United Kingdom now contains 

 4 square roods; a rood contains 160 

 square perches, rods, poles, or lugs ; and 

 a perch contains 30^ square y-ards. A 

 Statute acre therefore contains 4840 

 square yards. The Irish acre contains 

 7840 square, or nearly equal to 1 acre, 

 2 roods, and 19 perches, Statute measure. 

 The Scotch acre contains 5760 square 

 yards, equal to 1 acre, 1 rood, and 2 

 perches, Statute measure. 



ACRIO'PSIS. (From akros, top, and 

 opsis, eye. Nat. ord., Orchids [Orchida- 

 ceae]. Linn. 20-Gynandria \-Monogynia). 

 A small genus of pretty stove orchids. 



A. densifl'fra (crowded-flowered). Green and 

 pink. Borneo. 1846. 



pi' eta (painted). White, green, and purple. 



August. Bantam. 1842. 



ACROCO'MIA. (From akros, top, and 

 kome, a tuft ; referring to the way the 

 leaves are produced. Nat. ord., Palms 

 [Palmaceas]. Linn. 2l-Monoecia6-Iexan- 

 dna). A genus of South American 

 palms ; a race of plants including some 

 of the most majestic specimens of the 

 vegetable kingdom, whose products of 

 fruit, root, stems, andleaves are applied to 

 numerous economical purposes. Suckers ; 

 rich sandy loam. 



A. aculea'ta (prickly). 40. West Indies. 1796. 



fusifo'rmis (spindle-shaped). 40. Trinidad. 



1731. 



giobo'sa (globular). 20. St. Vincent. 1824. 



'yuiane'nsis (Guiana). 30. Demerara. 1824. 



ho'rrida (horrid). 30. Trinidad. 1820. 



mi' nor (smaller). 20. Trinidad. 1820. 



scleroca'rpa (hard-fruited). 40. West In- 



dies. 1731. 



tenuifo'lia (fine-leaved) . 30. Brazil. 1824. 



ACRONY'CHIA. (From akros, top, and 

 onyx, a claw ; referring to the curved 

 points of the petals. Nat. ord., Citronworts 

 [Aurantiacea?]. Linn. 8-octandria 1- 

 monogi/nia}. A fine greenhouse ever- 

 green tree, producing sweet-scented blos- 

 soms, not unlike those of the orange. 

 Cuttings of small side-shoots in July, in 

 sand, under a bell-glass : soil, sandy loam 

 and peat. A greenhouse shrub. Winter 

 temp. 40 to 45. 



A. Cunningha'mi (Cunningham's). White. 

 July. Moreton Bay. 1838. 



ACROPE'RA. (From akros, the end, and 

 pera, a pouch ; referring to a pouch-like 

 appendage at the end of the labellum. 



