THE KNIGHT OF THE POLAR STAR 297 



like a girl who has danced all the evening at a ball ; by 

 four o'clock it is completely withered. ' I sat up all night 



to paint it,' said Lady S , who, like Linnaeus, was not 



merely a scientific botanist, a Dryasdust of the museum?. 



Then, again, does Linnaaus's floral clock apply to the 

 Swedish long day, or to ours ? 



1 The flowers of suecory open at 8 P.M., and close at 

 4 P.M.; those of salsafy l close about midday. The 

 following are a few of Linnaeus's horological flowers, 

 with their hours of opening. 



Ipomcea Ml, Blue Convolvulus of India 



Tragopogon pratense, Goat's Beard 



Papaver nudicaule, Yellow Mountain Poppy 



Hypoclucris maculata, Cat's Ear . 



Various species of Sonchus and Hieracium, Sow 



thistle and Hawkweed .... 

 Lactuca satira, Lettuce .... 

 Specularia speculum, Venus' Looking-glass . 

 Calendula pluvmlis, Marigold 

 Anagallis arrensis, Red Pimpernel 



Nolana prostrata 



Calendula arvensis, Field Marigold . 

 Arenaria rubra, Sandwort .... 

 Mesembryantliemum nodiflorum . 

 Ornithogalum umbellatum, Dame d'Onze Heures 



(Star of Bethlehem) 11 



Various Ficoideus plants, Mesembryanthemums, 



&c. 



Scilla pomcrldiana, Squill 



Silene noctiflora, Night-flowering Catchfly . 

 (Enotliera bicnnis, Evening Primrose . 

 Mirabilis Jalapa, Marvel of Peru ('four-o'clock 

 flower ') expands at Upsala at ... 

 Cereus grandiflorus, Night-blowing Cereus . 



1 Tragopogon porrifolius. 



12 



P.M. 



2 

 5 

 6 



6 



7 



