146 



ESTERN BOTANY NO. Is 



■ 



Yucca australis. This 13 the plant that Goldman calls Y. valida in 



report 



form 



lywh 



forests. The general aspect of the plant is bluish, and 

 ... y.^ ..„.„ ","'1? ^^* ^'g^' ^"^ out on the plain becomes 30 feet high. 



t IS Wly stoloniferous and with slender stems nearly erect. Leaves are 

 1/2 feet long, somewhat ascending, glaucous-bluish above and dark-green 

 oelow, nearer apple-green, long-acuminate above, a little contracted l^low 



hm, very concave, not over 2 inches wide, very many, and with bases 

 do^cset not with thread, on the sides. The u^permosl 1-4 ^eet of the 



■Z 1 ■ '^ ^V't,'"*^'"'^ V^ *'^ ^'^^^^ ^-^^^ ^^ ^Se become reflexed 

 ^•nd ^v-h.ch sheath the stem almost to the very' base. Th? trunks are never 



ivfriv ? J° t '^''b ^'^''^'' ^ ^°°^ ^^d ^ ^^If lo"g' «^sile, with 

 ^A Llfi/ "Mv V "'-c ^.™'V ^PP^^^^^ly pendent, ve^- sweet and 

 rnT^/t'^ ^''^'r ^""^^ ^^'^'^^ ^Sose, black. No flowers seai. 



;^a L "'o r k"""^"'' •^'^"''^ ^^' ^^28. Prefers sandy soil, not in 

 washe^. On the big mesa west of La Paz are forests of it. There the 



irSJ.'; r. '^ %^°°* to 2fectlong and with fine threads. The trunks 

 pre always slender and never big as in Y. brevifolia. 



•'•hi- nl'nt ""'^'"v T- "^"^^^^ prandegee). Yucca valida Brandegee. 

 ;h> plant is mamfest y not an ally with Y. brevifolia ( arbor escens), but 



fro!. VP'-fr ^°™ °V?! 'r"^°^ ^""'^'^^'^ ^^'^^^^ ^5 markedly different 

 I roni brevifolia in the flabby leaves and slender trunk. 



to k^n^llnThT"" ^^\^''\''^I: S°^°^^e. VV. Sonorae Watson. The attempt 



' active '^'4,'^'}'' )y ^"^^ . ^nd Standley on the petiole character 

 \>> abortive. iTie tio of the nPtmU te ,,^,-^w «^u*.--. »» *. .- , 



acummate from a deltoid base, var}'ing much 

 are young plants. For the most part the trees 'in 



;hv'cut'thi''T/'TJ^..*^"l'^ *^' "^'y ^^^^^ ^^ ''^^^"y t>e^a"^ 

 •tr^ '11^!"".°^°^ *^*'^■^'"g ^°"^^s- This thatch is about that of the 



The more obtuse forms 

 Mexico are not allowed 



— J — 



very variable. 

 i^K tip. l<Hi2rer 



normal filifera. The threads are 

 out in a sheathed cone with tape 

 trunk is rarely a foot 



f^ll trn^^ tC^ ♦ X 7- : wLiiin. 13 iurciy a looi inicK in tne 



hel en L len^T ^"l M ^'!^ f '^' '°'°"""^^' ^^^^ ^^^ ™^tly covered 



l^e se ? ^nfnf tI'\ *r k1''/ P''^°^^^' ^"* *^^^^ ^^e a few [rees that 

 d.e self-prunmg The leaf blades are about 3 feet lon^ hnr^rW nr fullv 



t^Tl-n tL "^ 'T'^ P'^^"^ ^^^^^ "^ d^^^^id to linear-triangul 

 'i i! sT^el? rfS^T^'/''>°l^^>^ linear-acuminate, and the outer ha» 



segment is penden and vibrating in the wind, and often whipped 



threads 



HiamPtPr Tt ^n • , "^ ^^**^°"^' ^^d will average a foot in 



tTr; kL^.7LV^„ri^! sou (not alkaline), where it i's quite wet. 



same 



bloom 



•:• 



It begins to 

 go down 



with mnV^.? • fl P- ^^'"*^'' ^"^ "''^ ^^"^^ Of herb 4-6 feet hi.h 

 ra e TT^Z. 'Tnnf r' 2^7 ^T^- ^^^^« cordate-ovate-acumi- 



tmS,inV^-^ .?,?:. ^^''v*^''^.*"^ ^""^^y ^"<» «^J«»tely and velvety^ 



pubescent with stellate, hairs becoming yellowish, pahnately 5-7 nen-ed. on 



