216 



OPENING OF THE PASSAGE TO THE INTERIOR OF THE FLOWER. 



8 A.M. 



A nagallis arvensis open. 



Diantkus proUfer „ 



Hieracium Auricula „ 



8-10 A.M. 

 Taraxacum officinale shut. 



9 A.M. 



Calendula arvensis open. 



Hieracium chondrilloides ... „ 



9-10 A.M. 



Arenaria rubra „ 



Mesemhryanthemum crystal- 



linum „ 



Tragopogon pratense shut. 



10 A.M. 



Gichorium Intyhus , 



Lactuca sativa „ 



Ehagadiolus edulis „ 



Sonchus arvensis „ 



10-11 A.M. 

 Mesemhryanthemum nodi- 

 florum open. 



11 A.M. 



Crepis alpina shut. 



11-12 A.M. 

 Sonchus oleraceus shut. 



Noon. 



Calendula arvensis „ 



Sonchus Lapponicus „ 



1 P.M. 



Dianthus proUfer „ 



Hieracium chondrilloides... „ 



1-2 P.M. 

 Crepis rubra „ 



2 P.M. 



Hieracium Auricula „ 



Hieracium murorum „ 



Mesemhryanthemum barbatum „ 



2-3 P.M. 

 Arenaria rubra , 



2-4 P.M. 

 Mesembryanthemum crystal- 

 linum „ 



3 P.M. 



Leontodon hastile „ 



Mesembryanthemum lingui- 



forme „ 



Mesembryanthemum nodiflo- 

 rum „ 



3-4 P.M. 



Anthericum ramosum shut. 



Calendula plu/vialis 



Hieraoiwm PUosella , 



4 P.M. 



Alyssvm, utriculatum 



4-5 P.M. 

 Hypochoeris maculata „ 



5 P.M. 



Hieradwm, umbellatum „ 



Nyctago hortensis open. 



Nymphoea alba shut. 



6 P.M. 

 Geranium triste open. 



7 P.M. 



Papaver nudicaule shut. 



7-8 P.M. 

 Hemerocallis fulva , 



9-10 P.M. 



Cactus grandiflorus open. 



Silene nootiflora „ 



Midnight. 

 Cactus grandiflorus shut 



To the above clock, adapted to the latitude of Upsala, I append a second, based 

 on long-continued observations at Innsbruck (47° north lat.), 13° south of Upsala. 



4-5 A.M. 



Rosa arvensis (June) open. 



5-6 A.M. 



Rosa rubiginosa {^xmi) „ 



Solanum nigrum {3 \i\y) „ 



6-7 A.M. 



Anoda hastata {3\x\y) „ 



Cichorium Intybus (July)... „ 



Crepis pulchra (July) , 



Dianthus neglectus (July)... „ 



Ocdlasia villosa (July) „ 



Hieracium amplexicaule 



(July) „ 



Hieracium aurantiacum 



(July) „ 



Lactuca perennis (August).. „ 



Lampsana communis (July) „ 



Linum grandiflorum (July) „ 



Linum viscosum (July) „ 



Mulgedium Plumieri (July) „ 



Ranunculus acer (J \xly) „ 



Solanum tuberosum (July).. „ 



Sonchus oleraceus (June) ... „ 



Taraxacum officinale (June) „ 



Tragopogon floccosus (July) „ 



Tragopogon orientalis (July) „ 



7-8 A.M. 

 CampanulaTracheiium{Jxily)o^'Ti 



Garlina acaulis (AvLgast)... „ 



Carlina vulgaris (August).. „ 



Crepis rubra (August) „ 



Oentiana acaulis (May) „ 



Geranium lucidum (July). . . „ 



Oilea tricolor {July) „ 



Hedypnois tubiformis (July) „ 



Hieracium PUosella (July).. „ 

 Hypecoumgrandiflorwm{Ju\y)„ 



Hypochoeris maculata (June) „ 



Lactuca muralis (July) „ 



Oxalis Valdiviana (July)... „ 



Sonchus a/rvensis (August).. „ 



Specularia Speculum (July) „ 



Tolpis barbata (August).... „ 



8-9 A.M. 



Adonis vernalis (April) „ 



£rassjca oZeracea (Sept.).... „ 



Diplotaxis tenuifolia (Sept.) „ 



Oentiana asclepiadea (Aug. ) „ 



Oentiana cruciata (J rxly)... „ 



Oentiana utriculosa (June). „ 



Oeranium columbinum^Aug.) „ 



HeUanthemumalpestre{JuTie) „ 



Lsopyrum thalictroides ( April)op'n 



Lactuca sativa (Aug.) „ 



Lactuca Scariola (Sept.).... „ 

 Mamillariaglochidiata{A.ug.) „ 



JVymphcea alba (Aug.) „ 



Ornithogalum Narbonense 



(July) „ 



Oxalis lasiandra (Aug.) „ 



Veronica Persica (June).... „ 



9-10 A.M. 

 Anagallis arvensis (July)... „ 

 Anemone Hepatica (April).. „ 

 Anemone nemorosa (April).. „ 

 Calendula offiAnalis (Sept.) „ 

 Colchicum autumnale (Sept.) „ 



Crepis pulchra (July) shut 



Crocus aureus (March) open. 



Draba verna (March) „ 



Eranthis hiemalis (March).. „ 

 Eschscholtzia Californica 



(June) I! 



Oallasia villosa (July) shut. 



Oxalis Acetosella (April).... open. 



Tulipa sylvestris (May) „ 



Tussilago Farfara (April) .. „ 

 Veronica Chamoedrys (Ma y) „ 



