Raohlaes, bfreilcd chaiaoter of the upper surface i>i
tlie secondar;, ia Wmoaa ptiiiea . . . . 91
Rain, as a cause of movement in nyctilropic leavps . C3
. aasuniptioQ of noi turnal posinoli by njcti tropio
Itaves dnrinK violeut— 70, 95
.adbemit drops of. «a an agent in modifying
the movements of the leaves of Mimosa puiieti , 101
Hale of aiOTemeuts ia loaves of Pilhirolobium saman 67
of niovemeot in relatioa to structure of the
motor organs 67, 70, 96
of movemcut« in the lesTes of Mimosa pudica
in relntiou to tliC structural features of tbe motor
of movements in tUe leaves of Mimosa pudica
regulated bv eouditioas affectiu;} supply and loss
of « t e r . ' 102
Respiration as a cause of diminishi d di-ital levorace »2
Buversion towards the diurnal positioa during the
latter part of the niiht 81
Eooti, evidoiiccsoflitiiit<totheaetivifyot. in relation
to absorpùoB of water in jli-moiii pudica . 7S
. supply of water br, as a prcvoative to tlie
occurrence of sudden miivements io lìie leares of
.kimiiiopiidiru on exposure to direct íua^hine . Ill
Ilotalion o! piana! of Crti'ia aZaio . . • 63, 69
.periodic, frequeat in pinnsB and piunnles.
absent or iaconspicuous in petioles . . . 61
—. absence of, in the movements of the leaves
oF PiCheroMiam saman . . • 6S, G9
, permaoent, of the petioles oi Leurana
Setagindla serpm. ayetitropic changfs in the colour
of the fronds of, in coaneelLon with Suctuations in
tlie proiopUsts of the tissues of, sport from variations
in tho capacity of the cells
ait into tho cells
-, changes of colour in old fronds
Sieve-tnbes, according to Haberlandt.
— — not a specific appnrat'
propagation of mOTemeuts in Mimosa pudica
the
Solar stimulation, effects of. on turgescence
Spaces, small size of intercellular, in puhinar tissues
of Pithecolohium somo« and Leucana gUuca . 74
Stability of position in relation to levcrAge . . 67
paiements, erroneous, rcgardine pbeaumenH aoimallf
presented by Mimosa púdica âppondix D
Sti^Dl^!ation fluctuations ia liqaid pressuro as a
o f - J20
••Stimuli" determiaing movements in Mimosapudira
very in power in direct relatioa to Iheir effect on
supply and loss of water . . . . .US
Slomatfl, nyctitropio movements of—. . .
— . • ., distinctive features in guard-cells of—
, opening and closure of, determined by tho
structural and fanclional diflerences between the
Euard-cclls aad the commoa epidermal celU .
, relation of numbers of, to rate of ayetitro-
, relative numbers of, in the leaves of
Pithecohbittm saman and Liucena glatica .
, number of, in leaves of HCiTOoia pudica
Strata of tissue in the pads of tlia primary pulvini of
Strength, structural and functional, of tissues in
relation to «ge
Structural fratures of motor organs . . . .
• of piilvini of Laic/tna glauca
in relation to ihe m-Tcments of the leaves
• • of the motor organs in Mimosa
— in the secondary pulv
.iVimoiff piK/ti-a ucconntinjt for the cluract
the movements of ihe secondary rachises
of the tertiary pnlvi
of
Minusn pui/ira
• of llie tertiary pulvii
Mimosa pudica as espsuiallj adapted to provide
/or Ihe oecurrrnce of sudden movements und<r
any conditions aHecung supply and loss of w«ter .
Suuset, factors at, determining devreaae in turges-
Sunshine, effects of expoiiire to direct, on the position
of the pinnuios of Mimosa pudica .
, direct, as a cause or sudd.^n movements in
dctaclifd leaves of Mimosa pudica . , . .
, effect of sudden ci pusure to, on very young
leaves of Alimoii/ pudica
Tellaric humidity in relation to the rooTcmcnts of
Mimosa pudict ^
Temperaiure. action of high, on vegetable tissues 31, 1
, action of lotv, on vegetable tissues . 11
, effects of llactiiations in, on ihe colour
of tho flofcrs of . . . 2
effects of, on expansion of the flowers
of Pin tulacit graidijl->ra ''
Tension, high, of liquids ia the tissues of Mimosa
Theories rcgardiiiR causotion of movements in Mimosa
pudica 63
Tissues, distinctive features of, making tor the diurnal
position of nyetitropio leaves . . . . 49,65
, late devekpment of the, making for the
diiiraal position • . 49
dead, an abnormal orsin on water-supply • 120
, dead, pxpprimeiits demonstrating propagation
of coil di linns inductile of luorementi througli—•
Appendix G
Trnn^ference, effects of sadden, to a relatively cool
and nioist atmosphere on pianta of Mmosa pudica 105
Transpiration, effects of vanotiona in activity of, on
turgescence
. noclurual cessation of -
, effects of excessive, on leaves of PM^s
1 Mtiiuisa pudici
vudicj
s fur, in the Icuv ' of Mimosa
' , loss by, in relation to distal leverage .
, cspcrimenta in regard t;o amount of,
in MimtJsa pudiea . . . . Appendix
Tropics, prevalfnca of nyctitropic phenomena in
the— • . - . .
Turguseenee, deSiiilion of—
, eau9i-s and results of— . . . .
' . existence of, apart from presence of
living protoplasm
, immediately dependent on purely physi-
—, distinct from s!
—, fluctuations in, effei^ted by alterutii.
1 tho
properties of the cell-sap, but n^
by alterations in the filVrative properties of proto-
Pl-sm
, coincidence »f loss of, nilh change of
colour in the flowers of Jpomxa heder a cea
— , examples of persistence of, in absence
of any living protoplasm . . . . 26 -
of fertile lilameuts of Pihbolus cr¡,»tal.
holus crystallinus
artificial maintenance of, by r Î of
expoanre to vapour of ai
, factors detorminini; fluctuations ia—
, oHocts produced by fluctuations in—
, variations in, of protoplaata apart from
alterations iu the capacity of ihe cells containing
them
, conditions providing for matimal .
, relation of, to strength of mass.
Quetuations in, in relation to relative
strength of opposed masses of tissue . . .
Tiirgescenee, dirai au ti ons in, ni:der various conti iti una
ai a cause of the assumption of the nocturnal position
by tho leaves of Leacmti glauca ,
of cull-walls in relation to stmctiiral
strength
Variations in rate at which •e conducted 56
, causes of, at which
conducted
in stimulant action of sunlight on tissues
of different plauis
, explanatiouof, in the degree of "irritability"
of th-j leaves of .U»moiu pudica at different
Vascular tissue, pcouliar form of the, in tlie secondary
pu I fini of Pithecolobima saman .
W.
Water, cllects of, of high temperature on the tissues
of Kalnachoe laciniata, J1,13, of Cassia sumalrana.
V2, 13, oi Cassia alala j'^.
, relations of atmospheric »ud telluric, to
turgeacence
, variations in root-supply of, in rehition to
diurnal assumption of the nocturnal position
, arrest of supply of. as a cause of movement«
ia ayctitropic leaves . . . . . .
. loss of, by the tissues of the motor organs in
Mimosa, pudica under various conditions of humidity
, adherent, as a cause of increased leverage on
the primary pulvini of Mimosa pudica .
, abnormili drain on supply of, determined by
death of tissues
Water-con due ling system, effects of variations in
volume of the gsscous eonteats of— . . 105,
Weights of tho various parts of the leaves of Mimusa
Wiltiugeflnavesinhot, dry weather . . .
Wind as a cause of the diurnal assumption of the
nocturnal position by the leaves of Pitheeolubivm
. action of, on various nyctitropic leaves ,
Wood, iuflueace of, in determiaiag the assumption of
the nccturaal poflitioa . . . . . .