115 Floristik und Systematik der Phanerogamen 



Dans les Orchide'es delaColonia Eritrea, que l'auteur ä etudiees 

 pour la „Flora Eritrea" du Prof. Pirott'a, il ä decouvert une espece 

 nouvelle appelee par lui, en l'honneur de son maitre, Bonatea 

 Pirottae. L'auteur donne les raisons de la Separation entre les genres 

 Bonatea et Habenaria et d'interessants details geographiques et syst6- 

 matiques sur la nouvelle espece et les autres dejä connues. 



F. Cortesi (Rome). 



Dahlstedt, H., Om skandinaviske TaraxacumA o r m e r (0 n 



S candi na V ian For ms olTaraxacum). (Botaniska Notiser. 



Lund. 1905. p. 145—172. With 2 pl.) 



Dr. Dahlstedt has in several years studied the genus Taraxacum 

 upon living material^ partly wild-growing and partly cultivated; he has 

 a large number of species in cultivation in the botanical garden Bergi- 

 anska trädgärden near Stockholm. 



The results of his study shall be published in the Acta Horti 

 Bergiani, but as the publication will be postponed for some time he 

 gives now a preliminary report on the Scandinavian forms. The 

 meaning of this report is to draw the attention of botanists to the forms 

 of Taraxacum and to make them collecting specimens and sending him 

 either dry or living plants or mature fruits. 



After an artificial key to determination of the forms he gives de- 

 scriptions of them and mentions shortly their distribution as hitherto 

 known. 



The forms are as follows: 



1. T. officinale (Web.) coli. 



f. typicum Dahlst., n. 

 subsp. patens Dahlst., n. 



„ Ostenfeldii (Raunkiaer). 

 „ speciosum (Raunk.) 

 „ opacum Dahlst., n. 

 „ tenebricans Dahlst., n. 

 „ Oelerti (Raunk.). 



2. /. sptctabile Dahlst., n. sp. 



3. T. croceum Dahlst. 



f. typicum Dahlst., n. 

 subsp. replctum Dahlst., n. 



4. T. palustre (Ehrh ). 



5. T. balticum Dahlst., n. sp. 



6. T. ceratophorum DC. 



subsp. Hjeltii Dahlst., n. (syn. T. boreale Hjelt, non Turcz.). 

 „ cornutum Dahlst., n. 

 „ norvegicum Dahlst., n. 



7. T. obliquum (Fr.) p. p. 



8. T. erythrospermum Andrz. 

 subsp. proximum Dahlst., n. 



„ marginatum Dahlst., n. 



„ rnbicundum Dahlst., n. 



„ Friesii Dahlst., n. 



„ tenuilobum Dahlst., n. 



^ lacistophyllum Dahlst., n. 



„ gothlandlcum Dahlst., n. 



„ laetum Dahlst., n. 



„ brachyglossum Dahlst., n. 



The two plates illustrate the shapes of the leaves of the erythro- 

 spermum-forms. 



The paper is written in Swedish, also the key and the descriptions 

 of species. C. H. Ostenfeld. 



