LARIX 



485 



LASTREA 



L. biterna'ta (twice-three times divided). Purple. Late 



autumn. Chili. 1848. 



LA'RIX. Larch. (From lor, fat, a Celtic word. Nat. 

 ord. Coniferae.) 



Hardy deciduous trees of more or less ornamental 

 character. L. europce'a is a valuable timber-tree. Dry 

 and hilly soils are most suitable for it. The others enjoy 

 the shelter of trees in lowland situations. Seeds and the 

 varieties by grafting, occasionally by cuttings and layers. 

 L. america'na (American). See L. PENDULA. 



,, davu'rica (Davurian). 2-12. Siberia. 1827. 



deci'dua (deciduous). See L. EUROP^EA. 



europce'a (European). 80-100. March or April. 

 European Alps. 1629. " The Larch." 



glau'ca pe'ttdula (sea-green weeping). Leaves 

 glaucous. 



pe'ndula (weeping). Branches very pendulous. 

 Tyrolese Alps. 1800. 



penduli'na (weeping-like). Branches drooping. 



ro'ssica (Russian). Russia. 1806. " Russian 

 Larch." 



semperui'rens (evergreen). Leaves lasting 2-3 

 years. 1870. 



sibi'rica (Siberian). 80-90. Siberia. " Siberian 

 Larch." 



virga'ta (twiggy). Primary branches long, out- 

 stretched. Austria. 1905. 



Griffithii (Griffith's). 30-40. Eastern Himalaya. 

 " Sikkim Larch." 



,, japo'nica (Japanese). See L. LEPTOLEPIS. 



Ka'mpferi (Kaempfer's). See PSEUDOLARIX K.EMP- 

 FERI. 



Ledebou'rii (Ledebour's). See L. EUROP.EA SIBIRICA. 



lepto'lepis (slender-scaled). 40. Japan. 



dumo'sa (bushy). Dwarf in habit. 1903. 



,, murraya'na (Murrayan). 



pe'ndula (pendulous). "Weeping Japan Larch." 



prostra'ta (prostrate). Stems lying on the ground. 

 1909. 



Lyallii (Lyall's). 40. N.W. Amer. 1863. 



occidenta'lis (western). 150. N.W. Amer. 



pe'ndula (pendulous). 80-90. N.E. Amer. " Tama- 

 rack." " Black Larch." 



Potetti'nt(Potanin's). 20-60. Western China. 1906. 



pyramidalis (pyramidal). See L. EUROP^EA. 



vulga'ris (common). See L. EUROP/EA. 



LARKSPUR. Delphinium. 

 LARO'CHEA. Ro'chea. 



LA'RREA. (Named after a Spaniard of that name. 

 Nat. ord. Bean-capers [Zygophyllaceae]. Linn. lo-De- 

 candria, i-Monogynia. Allied to Zygophyllum.) 



Greenhouse evergreens, from South America, with 

 yellow flowers. Cuttings of young half-ripened shoots 

 in sand, under a bell-glass, in summer ; peat and fibrous 

 loam, with silver sand, and pieces of broken pot, and 

 charcoal, to keep the soil open. Winter temp., 40 to 

 48 ; summer, in a shaded position. 

 L. divarica'ta (straggling). 2. July. 1829. 

 ni'tida (shining-leaved). 2. June. 1829. 



LARVA. The name by which an insect is described 

 when in the state between the egg and the chrysalis 

 form. The larva of a butterfly or moth is commonly 

 known as a caterpillar ; of a fly or beetle, as a maggot or 

 grub. 



LASERWORT. Tha'psia Laserpe'tii. 



LA'SIA. (From lasios, woolly. Nat. ord. Araceae.) 

 Stove evergreen. Divisions ; and cuttings in sand in a 

 propagating case. Loam, peat, and some nodules of 

 charcoal, with sand. 



L. aculea'ia (prickly). See L. HETEROPHYLLA. 

 heterophy < lla (various-leaved). 2. April. India and 



Malaya. 1759. 

 spino'sa (spiny). See L. HETEROPHYLLA. 



LASIAGRaSTIS CALAMAGRO STIS. See STIPA 

 CALAMAGROSTIS. 



LASIA'NDRA. (From lasios, woolly, and aner, an 

 anther ; woolly stamened. Nat. ord. Melastomads 

 [Melastomaceas]. Linn. io-Decandfia,i-Monogynia. Now 

 referred to Tibouchina.) 



L. arge'ntea (silver y-leaved). See TIBOUCHINA HOLO- 



SERICEA. 



fontanesia'na (Des Fontaines'). See TIBOUCHINA 



GRANULOSA. 



lepido'ta (scaly). See TIBOUCHINA OCHYPETALA. 



macra'nfha (large-flowered). See TIBOUCHINA SEMI- 



DECANDRA. 



,, petiola'ta (long-leai -stalked). See TIBOUCHINA GAU- 



DICHAUDIANA. 



LASIOPE'TALUM. (From lasios, woolly, and peialon, 

 a petal, or flower-leaf. Nat. ord. Sierculiads [Sterculi- 

 aceaej. Linn. 5-Pentandria, i-Monogynia.) 



Greenhouse evergreen shrubs, from Australia. Cuttings 

 of half-ripened shoots in sand, under a glass, in April or 

 May ; sandy peat and fibrous loam, well drained, and 

 carefully watered ; either stagnant moisture or a sour 

 soil destroys them. Winter temp., 40 to 45. 

 L. arbore'scens (tree). See SERINGIA PLATYPHYLLA. 

 Baue'ri (Bauer's). Pearly white. (B. M., t. 6445.) 

 bractea'tum (bracted). 3. Pink. April. 1844. 

 ferrugi'neum (rusty). 4. White. June. 1791. 

 ,, macropky'llum (large-leaved). 5. Pale green. May. 



1825. 



purpu'reum (purple). See THOMASIA PURPUREA. 

 solana'ceum (Solanum-like). See THOMASIA SOLAN- 



ACEA. 

 triphy'llum (three-leaved). See THOMASIA TRIPHYLLA. 



LASIORRHTZA RO'SEA and L. RUNCINA'TA. See 



LEUCERIA RUNCINATA. 



LASIOSIPHON. (From lasios, woolly, and siphon, a 

 tube ; the corolla tube is woolly. Nat. ord. Thymele- 

 aceae.) 



Evergreen, greenhouse shrubs. Seeds in gentle heat ; 

 cuttings of growing shoots in gentle heat under a bell- 

 glass. Two-thirds loam, one-third peat, with charcoal 

 nodules and sand. 

 L. anthylloi'des (Anthyllis-like). 2. Soft yellow. S. 



Africa. 1889. 

 ,, erioce' phalus (woolly-headed). White or purple. June. 



S. Africa. 1793. 

 linifo'lius (flax-leaved). July. S. Africa. 1788. 



LASIOSPE'RMUM. (From lasios, woolly, and sperma, 

 a seed. Nat. ord. Composites [Composite]. Linn. 19- 

 Syngenesia, i-jEqualis. Allied to Santolina.) 



Half-hardy evergreen trailing plants, with yellow 

 flowers. Division in spring, and cuttings under a hand- 

 light, in a shady place, in summer ; common garden-soil. 

 Most of them require the protection of a cold pit in 

 winter. The Italian species are most hardy. 

 L. anthemoi'des (Anthemis like). See ANTHEMIS CRETICA. 

 crithmifo'lium (samphire-leaved). See SANTOLINA 



CRITHMIFOLIA. 



,, eriospe'rmum (woolly-seeded). See L. PEDUNCULARE. 

 ,, peduncula' re (long-no-wei -stalked). J. July. S.Africa. 



1798- 

 ,, rigidum (stiff). See ANTHEMIS CRETICA. 



LASTHE'NIA. (Derivation not explained. Nat. ord. 

 Composites [Composita?]. Linn. ig-Syngenesia, z-Super- 

 ftua.) 



Hardy annuals, with yellow flowers. Seeds in October, 

 and plants protected by boughs of evergreens during the 

 winter ; or sow in March and April in the open border. 

 L. califo'rnica (Calif ornian). See L. GLABRATA. 

 ,, glabra'ta (smooth). i. May. California. 1834. 

 obtusifo'lia (blunt-leaved), i. May. Chili. 1833. 



LA'STREA. (Derivation unexplained. Nat. ord. 

 Ferns [Filices]. Linn. z^-Cryptogamia, i-Filices.) 



For culture, see FERNS. They have all yellowish spores. 



HARDY. 



L. aculea'ia (common-prickly). SeeAspioiuMACULEATUM. 

 c&mula (emulous). i-i|. Britain. 

 ,, crista'ta (/scr-crested). |. July. Britain. 

 ,, dilata'ta (enlarged-crested). 2. June. Britain. 

 ,, Fi'lix-mos (male-fern). 3. Britain. 

 Fcenise'cii (Fcenisec's). See L. *;MULA. 

 goldia'na (Goldie's). July. N. Amer. 1822. 

 interme'dia (intermediate). June. N. Amer. 1837. 

 margina'lis (border-spared) . 2. June. N. Amer. 

 1772. 



