The natural history of plants, their forms, growth, reproduction, and distribution; . iig. 94.—Indian Climbing Palms {Rotang). From a photograph. What has been stated here with especial regard to the Rotang or Climbing Palmapplies also to all other twining and climbing plants known by the name of lianes,and their sap-conducting tubes are the wider, the longer their stems and the larger 364 THE VASCULAR TISSUES AND TRANSPIRATION. their transpiring leaves. In very many lianes the cavities of the conducting vessels!can be plainly seen with the naked eye. This is the case, for example, in the cros
The natural history of plants, their forms, growth, reproduction, and distribution; . iig. 94.—Indian Climbing Palms {Rotang). From a photograph. What has been stated here with especial regard to the Rotang or Climbing Palmapplies also to all other twining and climbing plants known by the name of lianes,and their sap-conducting tubes are the wider, the longer their stems and the larger 364 THE VASCULAR TISSUES AND TRANSPIRATION. their transpiring leaves. In very many lianes the cavities of the conducting vessels!can be plainly seen with the naked eye. This is the case, for example, in the cross-1section of the liane represented in natural size in fig. 95 ^. A diameter of J mm. is. • Portion of tne stem of a tropical Aristulochia. s Cross section of a liane-like Aristolochia. » Menispermum Carolinianum.* Cross section of the twining stem of Menisvermuin (magnified). * Portion of a liane (probably an Asclepiad) gathered ina tropical forest; nat. size. not at all rare in passion-flowers and aristolochias, and, generally speaking, in moisttwining and climbing plants; whilst in many lianes the conducting tubes haveeven been observed to be 0*7 mm. in diameter. THE VASCULAR TISSUES AND TRANSPIRATION. 365
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbotany, bookyear1902
