June 1892.] THE BOTANICAL SOCIETY OF EDINBURGH. 445 



Mhododendron, and Azalea presented a very rich appearance ; 

 Hawthorn and Laburnum are well covered with flower buds, 

 and promise to be very fine. Hollies also show abundance of 

 flower this season. 



During the month the thermometer was at or below the 

 freezing point on two occasions, indicating 4° of frost. The 

 lowest readings were on the 1st, 32"; 2nd, 28°; 10th, 33°; 12th, 

 33°; 21st, 33°. The lowest day temperature was 51° on the 

 4th, and the highest 78° on the 31st. 



On the rock-garden 282 species and varieties came 

 into flower during May as against 260 for the corresponding 

 month last year. Among the most interesting were : — 

 Aciphylla squarrosa, Adonis ijyrenaica, Anemone alpina, 

 A. sidphurea, A. haikalensis, A. polyantlics, Androsace lactea, 

 A. sarmentosa, Aquilcgia Stuarti, Aid)rietia croatica, A. 

 Leiehtlini, Azalea procwnhens, Bryanthus erectus, Cornus 

 canadensis, Cytisus decumbens, Cani'panida Allioni, Daphne 

 cneorum, Dianthus glacialis, Dodecatheon integrifolinni, D. 

 splendens, Dryas Di^ummondi, Enhianthus himalayensis, 

 Edraianthus scrpyllifolius, Heuchera saoigimica, Gentiana 

 verna, GypsopMla cerastioidcs, Polcinonium humile, P. reptans, 

 Potentilla aurea, Pcntstemon Menziesii, Onosma tauricum, 

 Oxytropis camiJcstris, Patrinia nudicaulis, Primula viscosa, P. 

 Wareii, Saxifraga mnscoides purpurea, &c., &c. 



Readings of exposed Thermometers at the Rock-Garden of the 

 Royal Botanic Garden, Edinburgh, during May 1892. 



TBANS. BOT. SOC. EDIN. VOL. XIX. 



2 K 



