52 A MONTANE RAIN-FOREST. 



In certain forms growth and leaf formation are continuous, while 

 blooming occurs at a definite season, as in 



Alchornea latifolia. Sciadophyllum brownei. 



Oestrum hirtum. Gilibertia arborea. 



Brunellia comocladifolia. 



In all these forms a check in growth may be noticed in flowering 

 shoots. In a few trees which otherwise grow continuously there may 

 be noticed a check to growth for some months during the maturing of 

 fruit, owing to the inflorescence being terminal, as in Cithatexylum 

 caudatum and Miconia rubens, both of which bloom in the autumn and 

 mature fruit during the winter, thereby sharing in the growth rest of 

 some trees which are not in fruit at the time. 



The winter rest is most marked in those trees which lose their leaves 

 and remain bare for several weeks, which are: 



Rhamnus sphaerqspermus. Viburnum villosum. 



Clethra alexandri. Viburnum alpinum. 



Clethra occidentalis. 



Some trees of Clethra occidentalis retain a few of their leaves, while 

 trees of Clethra alexandri are often bare for a week or two. Among the 

 above, and the trees which cease growth but do not lose their leaves 

 entirely, there are well-marked terminal resting buds, covered by scale 

 leaves of thin texture. 



The trees which bloom between the last week of January and the 

 end of May are the following : 



Podocarpus urbanii. Eugenia marchiana, February. 



Hedyosmum arborescens, January. Meriania purpurea, March and April. 



Myrica microcarpa, March to April. Miconia quadrangularis. 



Alchornea latifolia, March to April. Mecranium purpurascens. 



Acalypha virgata, February to May. Gilibertia arborea, May. 



Ilex qbcordata. Gilibertia nutans, May. 



Turpinia oocidentalis, May. Garrya fadyenii. 



Rhamnus sphaerospermus, March to April. Vaccinium meridionale, Jan. to March. 



Haemocharis haematoxylon, Feb. to April. Cestrum hirtum. 



Cleyera theoides, January. Cestrum sp. 



Clusia havetioides. Viburnum villosum, Feb. to March. 



Eugenia fragrans, February. Viburnum alpinum, Feb. to March. 



In some of the above the flowers are borne on the wood of the season, 

 more particularly in those which bloom late, after growth has had time 

 to progress, as in Turpinia occidentalis, Gilibertia arborea, and Gilibertia 

 nutans. Much more commonly the flowers are borne on the wood 

 of the preceding season. In the majority of cases shoot and leaf growth 

 are simultaneous with the growth and unfolding of the inflorescence, 

 that is, both cease before the coming of summer. 



In trees of constant growth the leaf-fall is likewise constant, and it 

 is difficult to determine the age of leaves at fall unless they are very 

 short-lived. In Boehmeria caudata a calculation based upon the interval 

 of time between the first appearance of successive pairs of leaves on 

 a shoot and the number of pairs persisting on shoots showed the leaves 



