POTERIUM 



702 



POTTING 



P. re'ptans flo're-ple'no (double-flowered). $. July. 



Britain. 



variega'ta (variegated-leaved), $. July. Britain. 

 retu'sa (retuse). See P. TRIDENTATA. 

 Richardso'nii (Richardson's), i. July. N. Amer. 



1826. 



riva'lis (river-bank). N. Amer. 

 millegra'na (thousand-seeded). 

 rupe'stris (rock), i. White. June. Europe (Wales). 

 pignut a (pigmy), i- White. June, July. 

 rupi'cola (rock-loving). See P. RUPESTRIS. 

 russellia'na (Russellian). i-ij. Scarlet. June to 



September. Hybrid. 



,, ntihe'nica (Russian). See P. NORVEGICA. 

 salisburge'nsis (Salisburgan). See P. ALPESTRIS. 

 sa/ovt'na(Salesovian). i-ij. Rose-purple. Hima- 

 laya ; Central Asia. 



sanguisorbifo'lia (Sanguisorba-leaved). Europe. 

 sarmento'sa (twiggy). See P. CANADENSIS. 

 Saxi'fraga (Saxifraga-like). J. White. May, June. 



Europe. 



schrenkia'na (Schrenkian). Central Asia. 

 semilacinia' ta (half-cut). Garden origin. 

 seri'cea (silky-leaved). J. July. Siberia. 1780. 

 Sibba'ldi (Sibbald's). J. July to September. 



Northern and southern regions (Scotland). 

 sieversia'na (Siever's). June. Nepaul. 1822. 

 Sm0M'/(Smout's). i. Yellow, with red eye. Hybrid. 



1848. 



specio'sa (showy), i. June. Crete. 1821. 

 sple'ndens (shining) of Buch.-Ham. See P. FULGENS. 

 sple'ndens (shining) of Ram. i. Pyrenees, &c. 

 ,, stipula'ris (stipuled). i. July. Siberia. 1727. 

 subacau'lis (ncarly-stemless) of Jacquin. See P. 



CINEREA. 



subacau'lis (nearly-stemless) of Scop. See P. NITIDA. 

 subacau'lis (nearly-stemless) of Linnaeus. N. Asia. 

 supi'na (supine), i. White. June. Temperate and 



tropical regions of Old World. 1837. 

 sylve'stris(vfood). See P. TORMENTILLA. 

 tanacetifolia (tansy-leaved). Siberia. 

 Thoma'sii (Thomas's). See P. DETOMMASII. 

 Thurbe'ri (Thurber's). 1-2. N. Amer. 

 To'nguei (Tongue's). Garden origin. 

 Tormenti'lla (TormentiUa). J-i. Europe (Britain). 



" Tormentil." 

 tridenta'ta ( three- toothed-lfaved). $. White. June. 



N. Amer. 1774. 



tubero'sa (tuberous). See P. RECTA. 

 tyrole'nsis (Tyrolese). Europe. 

 umbro'sa (shady). J. White. May. Tauria. 



1818. 

 unguicula'ta (clawed). J-i. White. July, August. 



California. 1880. 



uniflo'ra (one- flowered). See P. GELIDA. 

 valde'ria (Valderian). ^. Northern Italy. 

 Vei'tchii (Veitch's). 3-4. Snow-white. May to 



October. Western China. 1911. Evergreen 



shrub. 



veluti'na (velvety). See P. PEDUNCULARIS. 

 ve'rna (spring). . June. Europe (Britain). 

 verticilla'ris (whorled-leaved). See P. MULTIFIDA. 

 villo'sa (shaggy). J. June. Siberia, &c. 1820. 

 visco'sa (clammy), i. July. Dahuria. 1797. 

 wallichia'na (Wallichian). See P. ARGYROPHYLLA 



ATROSANGUINEA. 



Weinma'nnii (Weinmann's). See P. COLLINA. 

 wrangelia'na (Wrangelian). Siberia. 



POTE'RIUML (From poterion, a drinking-cup ; the 

 leaves having been used at one time for making a 

 medicinal drink. Nat. ord. Rosaceae.) 



Hardy herbaceous, perennials. Seeds ; divisions. 

 Ordinary soil. 



P. alpi'num (alpine). 2-3. Purple. Siberia. 1837. 

 Anderso'nii (Anderson's). Pink. July. Siberia. 

 canade'nse (Canadian). 3-4. White. N. Amer. ; 



Japan. 1633. 

 me'dium (intermediate). 4. Flesh. August. 



Canada. 1785. 



cauda'tum (tailed). 2-3. Greenish. January to 

 April. Canary Islands. 1779. Greenhouse shrub. 

 dia'ndrum (two-anthered). Purplish. July. Hima- 

 laya. 



dodeca'ndrum (twelve-anthered). 2-3. Purplish. 

 Europe. 



P. wtm'ca'/wm(warted-fruited). i-ij. Purplish. Europe 



(England). 

 officina'le (shop). 2-3. Purple. July. Europe 



(Britain) ; N. Asia ; N. Amer. " Great Burnet." 

 ,, auricula' turn (eared). 4. Pink. July. Sicily. 

 ,, ca'rneutn (flesh-coloured). 4. Red. July. 



Siberia. 1823. 

 ,, ,, negle'clum (neglected). 4. White. July. Europe. 



1800. 



prcz'cox (early). 3. Pink. May. Siberia. 1827. 

 ,, Sanguiso'rba (Sanguisorba). 1-1$. Green to purplish. 



May to July. N. temperate regions. "Salad 



Burnet." 

 ,, sitche'nse (Sitcha). 2-3. Purplish. North-western 



Amer. 

 spino'sum (spiny). 2-3. Greenish. April to August. 



S. Europe ; Syria. 1595. Hardy shrub. 

 ,, tenuifo'lium (slender-leaved). 2-3. Purplish. June 



to August. Eastern Asia. 



a'lbum (white). 2-3. White. June to August. 

 ,, verruca' sum (warted). 4. Pink. July. Mediter- 

 ranean region. 1810. 



POT-HERB MOTH. Mamestra. 

 POT-HERBS. See HERBARY. 



PO'THOS. (The Cingalese name for one species. Nat. 

 ord. Arads [Araceael. Linn. ^-Tetrandria, i-Monogynia. 

 Allied to Anthurium.) 



The following are stove epiphytes ; but there are 

 many more, and some evergreen trailers, not worth 

 notice. Dividing the roots in spring ; fibrous peat, 

 fibrous loam, rotten wood, and charcoal. Winter temp., 

 55 to 60 ; summer, 60 to 90. 

 P. acau'lis (stemless) of Jacquin. See ANTHURIUM 



ACAULE. 



angusta'tus (narrow). See ANTHURIUM ANGUSTATUM. 

 arge'nieus (silvery). Leaves silvery-grey, showy. 



Borneo. 1887. Climber. 

 argyra'a (silvery). See SCINDAPSUS PICTUS. 

 au'reus (golden). Leaves handsomely variegated 

 with pale yellow and white. Solomon Isles. 1880. 

 celaiocau'lis (hidden-stemmed). Leaves velvety- 

 green, lying flat on the flat stems. Borneo. 1880. 

 Climber. 

 crassinc rvius (thick- nerved) of Hooker. See 



ANTHURIUM HOOKERI. 



,, crassine' rvius (thick- nerved) of Jacquin. See AN- 

 THURIUM CRASSINERV1UM. 

 ,, elonga'tus (elongated). Leaves long, leathery, glossy 



green. 1885. Climber. 

 ,, enderia'nus (Enderian). Leaves sombre metallic 



black. Borneo. 1884. Climber. 

 flexuo'sus (flexuous). Leaves pale green, close-set 



over the flat stems. India. 1884. Climber. 

 grandiflo'rus (large-flowered). See ANTHURIUM 



GRANDIFOLIUM. 



grandifo'lius (large-leaved). See ANTHURIUM GRANDI- 

 FOLIUM. 



Lourei'rii (Loureir's). Philippines and China. 



,, macro phy'llus (large-leaved) of Swartz. See AN- 

 THURIUM SELLOUM. 



macrophy'llus (large-leaved) of Willdenow. See 

 ANTHURIUM GRANDIFOLIUM. 



,, ni'gricatrs (blackening). Leaves glossy blackish- 

 green. 1886. 



ni'tens (shining). Leaves glossy, bronzy purplish- 

 green. Malaya. 1887. 



ova'tus (egg-shaped). See ORONTIUM AQUATICUM. 



rubrine" rvius (red- nerved) . See ANTHURIUM RUBRI- 

 NERVIUM. 



sca'ndens (climbing). May. India. 1821. Climber. 



,, Seema'nni (Seemann's). May. China. 1821. Climber. 



POTHUA'VA NUDICAULIS. See .^CHMEA J;DI- 



CAULIS. 



POT-MARIGOLD. Cale'ndula officina'lis. 



POTTING. In performing this operation the Pots are 

 the first consideration, and for information relative to 

 these, see FLOWER-POTS. 



Time of Potting. This, when necessary, should gene- 

 rally be done after pruning, and when fresh growth has 

 taken place. The reason for this is, that it is advisable 

 never to give more checks to a plant at once than cannot 

 be avoided. The cutting down is a check, the repotting 



