Mr Lindsay's Beport on Open-Air Vegetation. 403 



Bejport 0)1 Temperatures and Open-Air Vegetation at the 

 Royal Botanic Garden, Edinburgh^ from July 1885 to 

 June 1886. By Egbert Lindsay, Curator of the 

 Garden. 



July 1885. — All outdoor vegetation suffered severely 

 from the excessive drought -wliich prevailed during the 

 month of July. Many trees and shrubs had their growth 

 arrested. Herbaceous plants were dwarfed, but continued 

 to flower freely. Grass lawns were very brown, and required 

 little or no cutting. Aphides were very abundant. Beech, 

 Elm, and Lime trees were specially infested by them, much 

 injury being done to their foliage in consequence. There 

 were twenty dry days, and only slight showers of rain 

 during the remainder. The lowest night temperature was 

 4 L° on the 1st of the month, and the highest 75° on the 

 25th. The highest day temperature was 84° on the 23rd, 

 and the lowest 56° on the 26th. On the Kock Garden 239 

 species and varieties of plants came into flower during 

 July, amongst which were the following : — 



Gentiana septemfida var. 



cordifoHa. 

 Lilium Krameri. 



Astragalus purpureas. 

 Anemone rivularis. 

 Asteriscus maritimus. 

 Anomatheca cruenta. 

 Campanula elegans. 



,, isophylla. 



„ Waldsteiniana. 



Calliprora flava. 

 Cistus florentinus. 

 Erica ramulosa. 

 Erythraea diffusa. 

 Geranium Lambertii. 



Meconopsis Wallichii. 

 Leontopodium alpinura. 

 Saxifraga Hausmani. 



„ odontophylla. 

 Silene Elizabeths. 

 Sedum hirsutum. 



„ aizoon. 

 Orobancbe rubra. 



&c. <tc. 



August. — This was also an exceedingly dry month, there 

 having been nineteen dry days. Several low night tem- 

 peratures were registered for this month. The lowest 

 readings were on the 14th, 37°; 15th, 37°; 19th, 38°; 

 30th, 37°; 31st, 38°. The highest morning readings were 

 on the 10th, 66°; 18th, 62°; 19th, 65°; 22nd, 62°; 

 24th, 66°. East and north-east winds were prevalent. 

 Autumn tints began to show early this season. Sugar 



