216 



OPENING OF THE PASSAGE TO THE INTERIOR OF THE FLOWER. 



8 A.M. 



A nagallis arvensis open. 



Dianthus prolifer „ 



Hieradum A uricula „ 



8-10 A.M. 



Taraxacum officinale shut. 



9 A.M. 



Calendula arvensis open. 



Hieradum chondrilloides . . . „ 



9-10 A.M. 



A renaria rubra „ 



ilesemhryanthemum crystal- 



limim ,j 



Tragopogon pratense shut. 



10 A.M. 



Cichorium Intybus „ 



Lactuca saliva „ 



Rhagadiolus edulis „ 



Sonchus arvensis 



10-11 A.M. 

 Mesembryanthemum nodi- 

 florum open. 



11 A.M. 

 Crepis alpina shut. 



11-12 A.M. 

 Sonchus oleraceus shut. 



Noon. 



Calendula arvensis , 



Sonchus LappoHicus „ 



1 P.M. 



Dianthus prolifer „ 



Hieradum chondrilloides... „ 



1-2 P.M. 

 Crepis rubra „ 



2 P.M. 



Hieradum Auricula „ 



Hieradum murorum „ 



Mesembryanthemum barbatum „ 



2-3 P.M. 

 Arenaria rubra „ 



2-4 P.M. 

 Mesembryanthemum crystal- 

 linum „ 



3 P.M. 



Leontodon hastile „ 



Mesembryanthemum lingui- 



forme „ 



Mesembryanthemum nodifio- 

 rum 



3-4 P.M. 



Anthericum ramosum shut. 



Calendula pluvialis „ 



Hieradum Pilosella „ 



4 P.M. 

 Alyssum utriculatum ,, 



4-5 P.M. 

 Hypochceris maculata . 



5 P.M. 



Hieradum umbellatam „ 



Nyctago hortensis open. 



Nymphwa alba shut. 



6 P.M. 

 Oeranium triste open. 



7 P.M. 



Papaver nudicaule shut. 



7-8 P.M. 

 Hemerocallis fulva 



9-10 P.M. 



Cactus grandiflorus open. 



Silene noctifiora „ 



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 ruhiginosa (June) „ 



Solanum nigrum (July) „ 



6-7 A.M. 



Anoda hastata {3\\\y) „ 



Cichoriuvi hitybus (July)... ,, 



Crepis pulchra (July) , 



Dianthus neglectus{Ja\y)... „ 



Gallasia vitlosa (July) „ 



Hieradum amplexicaule 



(July) „ 



Hieradum aurantiacum 



(July) „ 



Lactuca perennis (Augast).. „ 



Lampsana communis (July) „ 



Linum grandiflorum (July) „ 



Linum viscosam (July) „ 



Midgedium Rlumieri (July) „ 



Ranunculus acer (July) „ 



Solanum tuberosum (July).. „ 



Sonchus oleraceus (June) ... „ 



Taraxacum officinale (June) „ 



Tragopogon floccosus(Ju\y) „ 



l'ragopogonorie7Ualis{3u\y) „ 



7-8 A.M. 



CampanulaTrachelium{Ju\y)op'n 

 Carlina acaulis (August)... 

 Carlina vulgaris (August).. 



Crepis rubra (August) 



Oentiana acaulis (May) 



Geranium lucidum (July). . . 



ffilea tricolor (July) 



Hedypnois tubiformis (July) 

 Hieradum Pilosella (July).. , 

 Hi/pecoumgrandiflorum{3u\y) 

 Hypochceris maculata (June) , 



Lactuca muralis (July) , 



Oxalis Valdiviana (July)... . 

 Sonchus arvensis (August).. , 

 Specularia Speculum (July) , 

 Tolpis barbata (August).... , 



8-9 A.M. 



Adonis vernalis (April) , 



Brassica oleraeea (Sept.).... , 

 Diplotaxis tenuifolia (Sept.) , 

 Gentiana asclepiadea( Aug.) , 

 Gentiana cruciata (July)... , 

 Gentiana utriculosa (June). , 

 Geranium columbinum (Aug.) , 

 Helianthemumalpestre(June) „ 



Isopyriimthalictroides{ApriV)op'n 



Lactuca sativa (Ang.) „ 



Lactuca Scariola (Sept.).... „ 

 Mamillariaglochidiata(Aug.) „ 



Nymphcea alba (Aug.) „ 



Ornithogalum A^arbonense 



(July)... „ 



O.valis lasiandra (Aug.) , 



Veronica Persica (June). . . . „ 



9-10 A.M. 



Anagallis arveiuis {3 \i\y)... „ 

 Anemone Hepatica (April).. „ 

 Anemone nemorosa (April).. „ 

 Calendida officinalis (Sept.) „ 

 Colchicum autu7Hnale (Sept.) „ 



Crepis pulchra (July) shut. 



Crocus aureus (March) open. 



Draba verna (March) „ 



Eranthis hiemalis (March).. „ 

 Eschsch oltzia Californica 



(June) „ 



Gallasia villosa (July) shut. 



O.valis Acetosella (April).... open. 



Tutipa sylrestris (May) „ 



Tussilago Farfara (April).. „ 

 Veronica Chamcedrys {M.d,Y) „ 



