282 DR. P. GROOM ON THE LONGITUDINAL 
Prant 8. (Curves 6 m, 6 1-111). 
Cotyled. branch ..25  |47581 |5 49500 | 75 |9 |56 9 5 |25 
| | 
Ml hal mn c Hos |0 | 8&5 |275|86 | 45 105 8575 657 2°76 v25|.. | .. |) a 
| | | | 
| 
6 45575 4:95 [5 
Branch 2 ........ 23 5 195 |7 |95 m 8:25 4 75 653 |25 $5 B 5:5 135 
5 db. id 18 5 92 l5 |75 125 | 7 hes 8 65554 rs P 45 692529-953:5| 995 
Prawr 10. (Curves 7 m—7 11.) 
Main stem ...... | 45 45 | 6:25|3-75| 8 | 375) 8 |25 |25| 35 | 12 
Cotyl. branch (a)..165 3 | 8 BUT tiers tar Ofer tae) oe fle OE Lo DI NN 
{ $ » (5)..19954 |6 quA QE edle]. eee opo NE 
Branch 2 ........ 26-5 |&5 45 | 425| 65 | 475 3758|8. |..| .. |. e| e ai MEX 
f s 985.9108 905 (65 165 |995| $6 | 575,93 ]|57545275995| .. | .. |-. | -- | -- | -- ] *- E OOBIR 
SUR S : usas ess 11.1... HF. IS] S olv E 
or cS 19 g751075 25 | 4 (235 275 | | | Be | 
The measurements establish the existence of two subcurves in the internode-curve, 
though the two specimens show differences in detail and irregularities. The internode- 
subeurve of the main stem of one specimen and the corresponding displacement-subcurve 
of the other specimen are of the ascending-descending form, but the other two sub- 
curves of these main stems though not irregular are not of this form; but similar 
deviations from the type occur in individual plants of Atriplex rosea. The internode- 
subcurves of the branches of both plants are largely of the descending type (possibly in 
part because of the young condition of some of the branches). The displacement-subcurves 
of Salsola 8 are of the ascending-descending form; those of Salsola 10 largely of the 
descending form (possibly partly because of immaturity of the internodes measured). 
The irregularities in the subcurves may be due to external variations or to peculiar 
correlations (see my previous paper). 
CHENOPODIUM Bonus-HeEnricus. (Curves 8, 9.) 
Measurements were made (by Mr. A. Deane) along the main stems of two specimens, 
numbers 32 and 34. The terminal part of the latter was broken off. Records as to the 
exact height up the stem at which measurements commenced are lacking, but probably 
this was lower in plant 34. The following are the measurements made :— 
| $i 
| | | | 
| | | 
32 .. 155 10-5) 65| 6 |475| 4 Misi | 
365 85 825 34 915 365 845 36-5 ler 245215 
| 
| | i | | | | | 
94 . 8776 Ü o7 | 10 475 38. 34:25 31 40-5 35 265 |34-95 30 388 34 91 | 25-75 | 17 465 12 | 
- | | | | | | | | | | 
