216 



OPENING OF THE PASSAGE TO THE INTERIOR OF THE FLOWER. 



8 A.M. 



Anagallis arvensis open. 



Dianthus prolifer „ 



Hieracium A uricula „ 



8-10 A.M. 

 Taraxacum officinale shut. 



9 A.M. 



Calendula arvensis open. 



Hieracium chondrilloides ... „ 



9-10 A.M. 



Arenaria rubra „ 



Mesem hrya nthemum crystal- 



linum „ 



Tragopogon pratense shut. 



10 A.M. 



Cichorium Intyhxis „ 



Lactuca sativa „ 



Rhagadiolus edulis „ 



Sonchus arvensis „ 



10-11 A.M. 

 Mesemhryanthemum nodi- 

 florum open. 



11 A.M. 



Crepis aljnna shut. 



11-12 A.M, 

 Sonchus oleraceus shut. 



Noon. 



Calendula arvensis „ 



SoncJius Lapponicus „ 



1 P.M. 



Dianthus prolifer „ 



Hieracium chondrilloides... „ 



1-2 P.M. 

 Crepis rubra „ 



2 P.M. 



Hieracium Auricula „ 



Hieracium murorum „ 



Mesemhryanthemum barbatum „ 



2-3 P.M. 

 A renaria rubra „ 



2-4 P.M. 

 Mesemhryanthemum crystal- 

 linum „ 



3 P.M. 



Leontodon hastile „ 



Mesembryanthemum lingui- 



forme „ 



Mesembryanthemum nodiflo- 

 rum 



3-4 P.M. 



Antkericwn ramosum shut. 



Calendula pluvialis „ 



Hieracium Pilosella „ 



4 P.M. 



Alyssum utricidatum „ 



4-5 P.M. 

 Hyporhoeris maculata „ 



. 5 P.M. 



Hieracium umbellatiim ,, 



Nyctago hortensis open. 



Nymphcea alba shut. 



6 P.M. 

 Geranium triste open. 



7 P.M. 



Papaver nudicaide shut. 



7-8 P.M. 

 Hemerocallis fulva „ 



9-10 P.M. 



Cactus grandiflorus open. 



Sileae noctiflora „ 



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. 



Isopyrumthalictroides{^K\)x\\)(y\)^x\. 



Lactuca sativa (Aug.) „ 



Lactuca Scariola (Sept.) „ 



Mamillariaglochidiata{Ax\g.) „ 



Nymphcea alba (Aug.) „ 



Ornithogalum Karbonense 



(J"iy) » 



O.valis lasiandra (Aug.) „ 



Ve?-onica Persica (June) „ 



4-5 A.M. 



Rosa arvensis (June) open. 



5-6 A.M. 



Rosa rubiginosic (June) „ 



Solanum nigrum (July) „ 



6-7 A.M. 



Anoda hastata (July) „ 



Cichorium Intybvs (July)... ,, 



Crepis pulchra (July) „ 



Dianthus neglectus{3\\\y)... „ 



Gallasia 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 (July) „ 



Solanum tuberosum (July).. „ 



Sonchus oleraceus (June) ... „ 



Taraxacum officinale (June) „ 



Tragopogon floccosus (July) „ 



Tragopogon orientalis{J\\\y) „ 



7-8 A.M. 



CampanulaTracheliiim{J\i\y)o^^ii 



Carlina acaulis (August)... „ 



Carlina vulgaris (August).. „ 



Crepis rubra (August) „ 



Gentiana acaulis (May) „ 



Geranium lucidum (July)... „ 



Gilea tricolor (July) „ 



Hedypnois tubiformis (July) „ 



Hieracium Pilosella (July).. „ 

 Hypecoumgrandißorw)i{Ju\y)„ 



Hypochceris macidata (June) „ 



Lactuca muralis (July) „ 



Oxalis Valdiviana (July)... „ 



Sonchus arvensis (August).. „ 



Specularia Specxdum (July) „ 



Tolpis barbata (August).... „ 



8-9 A.M. 



Adonis ^'er?ia^is (April) „ 



Brassica o^e?'acea (Sept.).... „ 



Diplotaxis tenuifoUa (Sept.) „ 



Gentiana asclepiadea ( Aug. ) „ 



Gentiana cruciata (July) ... „ 



Gentiana utriculosa (June). „ 



Geranium colu7nbinum(Aug.) „ 



Helianthemum alpestre{S\nie) „ 



9-10 A.M. 



Anagallis arvensis (July)... „ 

 Anemone Hepatica (April).. „ 

 Anemone nemorosa (April).. „ 

 Calenchda officinalis (Sept.) „ 

 Colchicum autumnale{Sept.) „ 



Crepis pulchra (July) shut. 



Crocus aureus (March) open. 



Draba verna (March) „ 



Eranthis hiemalis (March).. „ 

 Eschscholtzia Californica 



(Juue) „ 



Gallasia villosa (July) shut. 



Oxalis Acetosella (April) open. 



Tidipa sylvestris (May) „ 



Tussilago Farfara (A])ril).. „ 

 Veronica Chamcedrys (May) „ 



