其全部生长物的数量亦必稀少.The total number of the inhabitants will be small.而有些是在叶子的顶端长有像水罐一样的生长物.Others have pitcher - like growths at the ends of the leaves.该种生长物或群体, 如培养菌.Such a growth or colony, as of bacteria....

“生长物”的英语可以翻译为：grower ...