
 
		N a t .   O r d .   LX X .  THYMELEyE. 
 In   its  profusion  o f   peculiar  Thymeleæ  extratropical  Australia  presents  a  parallel  to   Southern  Africa,  
 th o u g h   in   th a t  country  there  are  even  a  greater  uumber  o f   species,  and  they  be lon g   to   many  more  genera.  
 I n   Australia  all  fall  uuder  P im e le a   itself,  with  th e   exc ep tion   o f  a very  few  species  o f  th e   tropical  or  subtropical  
 g en u s  TFihiroemia,  a  s in g le   one   o f  M ac ro steg ia   (a  g en u s  clo se ly   allied  to   P im e le a ),  and  one  o f  
 Drapetes. 
 Gen.  I .  D R A P E T E S ,  L am . 
 P e rian th ium   tubulosum,  limbo  4-fido,  tubo  supra  basin  articulato  v .  inarticulate,  fauce  squamata  v.  
 esquamata.  S tam in a  4 ,  fauce  inserta.  S ty lu s   lateralis ;  stigmate  capitato  v.  plumoso.  N u x   ecorticata.—   
 Eru ticu li  seric e i,  muscoidei  v .  e ricoidei ;  foliis  linearihus,  im b rica tis ;  floribus  s o lita r iis  p a u c is v e ,  te rm in a libus, 
   in c o n ^ icu is. 
 A  small  and  extremely  natui-al  genus,  consisting  o f  five  species  remarkably  distributed,  one  being  found  in  
 Fuegia,  a  second  on  the  lofty mountain  o f  Kini  Bain  in  Borneo,  two  on  the mountains  of  New  Zealand,  and  one  
 in Tasmania.  A ll  are  small, more  or  less  silky,  herb-like  shmbs, witb prostrate,  creeping,  tufted  stems, and  slender  
 branches  covered with  imbrieating,  linear,  entire  leaves.  Floweis  small,  tenninal,  sunk  amongst  the  leaves.  P e rianth  
 tubular,  with  foiw  spreading  lobes,  the  tube  continuous  or  joiated  near  tbe base,  four  stamens  at  tbe  thi'oat,  
 alternating with four  scales  in  some  species,  and  eight  glauds  in  others.  Ocaiy with  a  lateral  style.— The  genus  
 has been  dmded  into two, from tbe presence or  absence  of tbe  scales  on the perianth, the continuous or jointed  tube,  
 whicb  is  angled  or  terete,  and  the  pliunose  or  capitate  stigma ;  but  if   these  characters  are  aU  adopted,  the  genus  
 must  be broken ujj  into  several.  Of  these  genera  Drapetes  has  no  glands  on  the  perianth,  and Kelleria,  Endl.,  to  
 which  the  Tasmanian  and  New  Zealand  species  belong,  has  glands  and  a  non-articulate  perianth.— The  D.  Tasmanica  
 is  a  densely-tufted,  prostrate  plant,  forming  large  matted  cushions  on  the moimtains, with  slender  interlaced  
 stems  4 - 8   inches  long,  and  slender  branches,  covered  with  imbricatiDg,  erect,  linear  leaves.  Leaves  1 -1 4   
 line  long,  concave,  obtuse,  silky  at  the  back.  Perianth  terminal,  süky,  sessile,  subiofundibulifonn,  rather  longer  
 than  the  leaves ;  tube obscurely  angled,  not jointed ;  lobes  as  long  as  the  tube,  linear.  Stamens  exserted.  Glands  
 eight,  spherical,  impairs  between  the  stamens.  Style   curved,  included;  stigma  capitate.  N u t  black,  shining,  
 (Name,  SpaTre-n^ç,  a  runaway ;  in  allusion  to  the  fugacious  perianth.) 
 1.  D r a p e t e s   T a sm a n i c a   (N o b .  in  Kew  Jou rn .  B o t.  v.  p .  2 9 9 .  t.  vii.  anno  1 8 5 3 )   ;  densissime  
 cæspitosa,  fo liis  erectis  imbricatis  linearibus  dense  sericeis  obtusis  concavis,  perianthii  tu b o   e lon gato  su b angulato  
 non  articulato,  fauce  g landulis  8  per  paria  laciniis  oppositis  instructa,  laciniis  tubo  æquilongis.  
 (Gu n n ,  2 0 5 3 .) 
 H a b .  Summits  o f  th e  W e ste rn  Mountains,  abundant,  Gunn.— (El.  Jan.) 
 D i s t e i b .  YTctoria  ;  M unyang Mountains,  elev.  6 0 0 0   feet,  M u e lle r. 
 Gen.  I I .  P IM E L E A , 
 infundibuliforme,  limbo  4-fid o ;  fauce  esquamata.  1 - 2 ,   fauce  inserta.  S ty lu s 
 lateralis ;  stigm ate   capitato.  N u x   corticata  v.  baccata.— Erutices  v .  fruticuli  gra c ile s,  oortice  tenacissimo ;  
 foliis  o p p ositis  ra r iu s   a ltem is   sparsisve,  in teg e rrim is,  subcoriaceis j   capitulis  sæpissime f o l i i s   difformibus  in volu 
 c ratis,  terminalibus,  ra riu s  a x illa rih u s  subspicatisve ;  floribus  alb is  roseis  v . f la v is ,  in te rdum   dioicis. 
 A  very beautiful  genus,  comprising  some  of  the  most  elegant  flowering  shrubs  in Australia  and Tasmania ;  it  
 is  confined  to  those  countries  and  to New  Zealand.  Upwards  of  seventy  species  are  known  to me, which  grow  in 
 3 3 1 
 about equal proportions in South-eastern and South-westeni Australia, and  there  are also  a few tropical ones ;  few  
 or no species inhabit both the East and West coasts. 
 This genus has been thus subdivided by  C. A. Meyer (Bullet. Acad.  St. Fetersb. iv.  71) :— 
 1.  Gymnococca.— uot articulate.  Fra/? succulent.—P .  drupacea,  Gunnii, pauciflora. 
 2.  Heteuolæna.—Pma»?/i not articulate.  Tube o f perianthlong.  Fra/? diy.  abundant.—P . nivea,  
 sericea, pygmæa. 
 3.  Calyptkostegia.—Perianth with the tube articulate.  Fruit  dry.—P .  ligustrina,  cernua,  linifolia, glauca,  
 flava, fiUfoiinis,  gracilis. 
 Erect  or  prostrate, glabrous ov  pubescent, or  silky shrubs, with generally slender branches, covered with verj-  
 tough  stringy bark, and  usually opposite, sessile  (rarely alternate), entire  leaves.  Flowers  capitate, rarely axülary  
 or spicate, heads generally  sun-ounded  by a  four-  or more-leaved  involucre.  Perianth  tubular  or  funnel-shaped,  
 four-cleft, with two (rarely only one) stamens at  the  throat, aud  no  scales.  Style   lateral.  Stigma  capitate.  Nut  
 usually enclosed in the di-y or baccate periantli.  (Name from TriiLiXi}, fatness ;  in allusion to tbe oily seeds.) 
 §  1.  Leaves opposite.  Heads o f  flowers  in  elongated  terminal peduncles,  without  involucral  leaves. 
 1.  Pimelea  filiformis  (N ob .  in  Lond.  Jouru.  B o t.  vi.  £ 8 0 )  ;  glaberrima,  caulibus  gracülimis  sim pliciusculis, 
   foliis  oppositis  lineari-oblongis  eUipticisve  subacutis  planis  margiuibus  tenuiter  recurvis,  floribus  
 (parvis)  iu   capitulum  subspicatum  pedunculatum  ebracteatum  dispositis,  rachi  pilosa,  perianthio  g la brato  
 tu b o   gracili  articulato  lac iniis  elongatis,  filamento  elongato  exserto.  (Gunn,  6 .)  (Ta b .  XCY^. D .) 
 H a b .  Apparently  very  rare,  th ou gh   found  in  abundance  in   one   spot  near  P en q u ite ,  Launceston,  
 Lawrence,  Gunn.— (F l.  D e c .) 
 Very nearly allied  to  the  New South Wales  P .  spicata,  but  that  speeies has decidedly spicate  flowers,  with  
 shorter  lobes  to  tbe perianth, and shorter stamens, and the leaves have not recurved margins.  Stems very slender,  
 prostrate, a foot and more long.  Leaves  iu rather distant pairs, 4 -4 inch long, petiolate, glabrous, elliptical or ovate-  
 oblong,  acute.  Flowers  small,  monandrous,  two  to  six  together,  capitate,  but  showing  a  tendency  to  become  
 spicate, ratlier shorter  than  the leaves.  Capitulum  geuerally pedunculate, rarely sessile.—P late XCV. B.  Fig.  1,  
 head of flowers;  2,  flower;  3, perianth, laid open;  4,  stamens;  5, ovaiy:—all magnifled. 
 §  2.  Leaves  alternate  and opposite.  Flowers  capitate. 
 2.  Pimelea  gracilis  (Br.  Prodr.  3 6 2 ) ;   ramis  gracilibus  foliisque  subtus  præcipue  appresse  pilosis  
 sericeisve,  foliis  alternis  v .  inferioribus  oppositis  lineari-lanceolatis  oblongisve,  capitulis  axillaribus  termina-  
 hbusque   sessilibus  foliis  caulinis  2 - 3   involucratis, perianthii  tubo  gracili  sericeo  fohis æquilongo, lim b i  lobis  
 oblongis  obtusis,  filamentis  brevibus,  sty lo   inc luso.— Calyptrostegia  gracilis,  C.  A .  M e y e r  in   B u lle t.  Acad.  
 S t.  P e te rsb.  iv.  7 1 .  [Gnnn,  2 5 .) 
 H a b .   Common  b y   th e   banks  o f  streams,  etc .,  near  Hobarton,  N ew   No r fo lk ,  Launce ston,  etc .— (Fl.  
 N o v .)  [v.  V.) 
 D i s t r ib .  Victoria,  Mu e ller. 
 A  slender bush, about  2  feet  high.  Stems  erect  or  ascending, branched.  Branches  strict, süky, as  are  the  
 under-sm-faccs of the leaves, and perianth.  Leaves altei-nate and opposite, 4   inch  long, liuear-oblong or  linear-lanceolate, 
  with  recurved margins.  Heads  o f floweis  axillaiy and  terminal, sessile, subtended  by cauline leaves, but  
 not  by special  bracts.  Perianth generally yellow, slender, about as  long as the  leaves.  Stamens  nearly sessüe.—   
 Muellei- sends from YTctoria  as  a variety of tliis  a  prostrate, densely tufted  plant, w-ith  four-angled, more  slender  
 stems, and broader, more usually opposite leaves ;  it is his var. alpina,  from the  Snowy River  and  summits  of  the  
 Munyang Mountains. 
 §  3.  Leaves  all  opposite.  Floweis  in  terminal  and axUlary  capitula.  Drupe  baccate. 
 3 .  Pimelea  drupacea  (Lab.  N o v .  H o ll,  i.  1 0 .  t.  7)  ;  frutex  orgyalis  erectus,  ramis  elongatis  virga- 
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