King's  Eep.v,  496 ;  Trans.St.  Louis  Acad,  iii,  47.-Parry  in  Am.  Nat.  ix,  141, 351. -Vasey,  Cat.  Forest  Trees,  38.— Watson,  Bot.  California,
ii,  164.
CATALOGUE  OF  FOREST  TREES.  219


THE  JOSHUA.   JOSHUA  TEEE.
Soathwestern  Utah,  northwestern  Arizona  to  southern  Nevada,  and  the  valley  of  the  Mohave  river,  California.
A  tree  G  to  12  meters  in  height,  with  a  trunk  0.60  to  0.90  meter  in  diameter;  dry,  gravelly  soil,  forming
upon  the  Mohave  desert  at  2,500  feet  elevation  an  open,  straggling  forest.
Wood  light,  soft,  spongy,  difficult  to  work;  color,  very  light  brown  or  nearly  white;  specific  gravity,  0.3737;
ash,  4.00;  occasionally  manufactured  into  paper-pulp.
411. — Yucca  elata,  Engelmann,
Coulter's  Bot.  Gazette,  vii,  17.
Y.  angusti/olia,  var.  radiosa,  Engelmaun  in  King's  Eep.  V,  496.
T.  angustifolia,  var.  elata,  Engelmann  in  Trans.  St.  Louis  Acad,  iii,  50;  Wheeler's  Eep.  vi, 270.
SPANISH  BAYONET.
Western  Texas  to  southern  Arizona  and  Utah;  southward  into  Mexico.
A  small  tree,  3  to  5  meters  in  height,  with  a  trunk  0.20  to  0.25  meter  in  diameter;  dry,  gravelly  mesas.
Wood  light,  soft,  spongy;  color,  light  brown  or  yellow ;  specific  gravity,  0.4470;  ash,  9.28.
412. — Yucca  baccata,  Torrey,

Bot.  Mex.  Boundary  Survey,  221  ;  Ives'  Eep.  29. — Cooper  iu  Smithsonian  Rep.  1S58,  266. — Balccr  in  London  Card.  Chronicle,  1870,  9'.'.!. —
Andr<S  in  111.  Hort.  3  ser.  xx,  23, 1. 115. — Gray,  Hall's  PI.  Texas,  23. — Engelmann  in  Traus.  St.  Louis  Acad,  iii,  44 ;  King's  Rep.  v,  496  ;
Wheeler's  Rep.  vi,  270. — Loew  iu  Wheeler's  Rep.  iii,  609. — ^Rothrock  in  Wheeler's  Rep.  vi,  52. — Watson,  Eot.  California,  ii,  Ki  1.
T.  filamentOSa,  f  Wood  in  Proc.  Philadelphia  Acad.  lt;68,  167  [not  Torrey].
SPANISH  BAYONET.      MEXICAN  BANANA.
