104 TILLERl!<rG IN INDIAN SUGARCANES 



of the stern . so that the vertical ranks of the leaves come to lie in all directions 

 and thfv f. thus int<?rfere with one anothor's liyht and air. There 



vvonld appear to ho a .similar torsion, though not always very obvious, 

 which finds expres>sion in the varying orientation of the hi.tds in the successive 

 branohes ©f the cane plant (PI. XVII, tigs. 2-5, see ako the dissections on 

 PI. VI). Tl:?!s is specially s^jfin where, as is often the case, the branching is 

 congested low dtjwn, all the brandies arising from a practically common 

 centre. In other cases it can be noted that the lines of leaves at the base 

 are not strictly opposed, but both tend to approximate to one or other side 

 of the stem, usu;; ide. This dorsi-ventrality of the shoot is 



especially well sef'n in. SaccJio/nim arvndinacemn, where the two row^s of buds 

 are both on the BxtmNX'mJNn^ f^dftTufXHEH. later branches, the inner side 

 behig altogether d< void. ..f Lvds (r/'. Pj. ]. fi^. 2 in the left-hand cane and 

 Fig^glpegif?];*^. >^riihgeiiie!»t\ajtdis>ntLbwtry><rfibcfencljiidi^ by the plant, in that 



Fig8^^'#^.^^^'*OnteriMW-''6f ^fe?s kggeat-i^^ t^Joa-bf 'tli^'s^feln.^ii^' later formed shoots 



h 



(^^■^- ^'hi^h^^ 'fhe'out*^^ bv^'neh of fig. 3 shows torsidu e3»f the #tieftfi^ aiidil '" 

 diiler^^ie biiti^'^^E^niti^iof'il^. 5sii#iaorsi^««tral at t&e base ■ in th^« • bbifilis be 

 ^f^^"^^-<k^ai6f %\icfef"^'=tlttb*^'*&^<>iW^ imp* rtai;<.e. Consuler, tor rustance, 



Fig?H,'^^^y#^l^kferkJig^^t'^\ir B^iifti^^l^ 



to iig^^and air, m acc<v;ivp!i^lK-<i in ihr diihx^iiix ;j:i<'U};;- h, u:>a) Saretha series 



^. th'i chAmj) oon.-iist^.oi ^tuv'-lit. cv. ^u^&s: branches, sprawling jn all directions 

 Fig. 7. The'saniemCr%aL7| months oM. '^ . 



and o{t<>n ubnost lying aowji : in Kai^;on,-t}ie jctujes a;is.anK' J:i vcrhcal position 



Fig. 8n Portion of 6ramia.C/^em clump, vieWed from below. Note the symmetrical 



^iit Tiie e.aiMK'St, possiDie .tnqinont and the carves at the base are comparatively 



ground plaTDi of the sector. r j 



short and f.aarp. In Pansahi, while the central shoots are erect, those outside 



curve very broadly and regularly, and the clump becomes cup-like in form, 

 .so on {see Plates illustrating the groups at the end of this Part). And 

 ' ••>'!Ous modes of growth, all leave their mark on the basal parts of the 

 ■iTwsing the clump. But this curvature is further assisted by the 

 mners which, again, are met with much more frequently in some 

 vajir "ihers. The term needs some explanation. We have applied 



it to 1.. .' .i.-r.^ where, before the earlier thickening stage of the shoot is com- 

 pleted, o);e or morn long thin joints are intercalated between the first short ones 

 and the latci \d the thickening process commences a second time. 



This gives the impit^Hsion that the shoot, having started its growth along normal 

 lines, finds itself cram.ped, but has still the power of changing its position, 

 and does so by the foriuation of a runner. The plasticity of the fully formed 

 branch is not auSicient for this to take place, and therefore runners are usually 



