CRITICAL NOTES ON SOME SPECIES OF CERASTIUM. 383 



the peduncle of the fruit is upright, as distinguished from his 

 specimens in which the peduncle is bent downwards at its junction 

 with the stem. This is probably due to the aesthetic sense of 

 symmetry evinced by the draughtsman, who forbore to represent 

 the central peduncle as crooked while the alar peduncles were 

 straight. 



17. C. ANDiNUM Benth. Plant. Hartweg. 162 (1839-57) = C. 

 moJIissimnm Poir. In the Index Keivensis the habitat of this plant 

 is stated to be the republic of Colombia, but I find that Hartweg's 

 specimens (no. 907) were from Mt. Antisana, in the Andes of 

 Ecuador. These specimens differ from those of typical C. mollissi- 

 mum in the sepals being thickly covered with woolly hairs. 



18. 0. ANDINUM Peyritsch, in LinncBa, xxx. 59 (1860), [= C. iiiolle 

 Bartl.] . 



Hab, Mexico ; volcano of Toluca, at 4100 metres. 



19. C. ANDINUM Phil, in Anal. Univ. Chil. (1862) ii. 318, et in 

 Linnaea, xxxiii. 21 (1864) = 0. triviaU var. andinum, Wilhams. 

 Nanum condensatum vix glandulosum ; folia oblongo-linearia ; 

 petala calyce paullo breviora. — The specimens are not to be dis- 

 tinguished from those of 0. vulqatiini var. andinum (A. Gray, in 

 U. S. Explor. Exped. Bot. i. 120). 



20. C. ANDRosACEUM Ser. in DC. Prodr. i. 416 (1824) = C. 

 Illyncum Ard. (1763-64). Seringe founded the species (so named 

 from its superficial resemblance to Androsace villosa) on Castagne's 

 specimens from the neighbourhood of Constantinople. In Nue's 

 herbarium in the Nancy Museum there are specimens from the 

 same locality labelled "Constantinople, 1844, n. 148," which 

 exactly agree with Castagne's specimens. It may be noted that 

 Boissier cites this same number in the same series of plants for 

 Delpliinium persicwn var. assijriacum Boiss. Seringe's somewhat 

 meagre description is — " pusillam pilosissimum, foliis ovatis, caule 

 dichotomo, floribus subcapitatis ternis, pedunculatis basi involu- 

 cratis, sepalis angustis acutissimis." The specimens which Castagne 

 sent to Seringe were labelled '' Cerastiuni pilosuin.'' Castagne pro- 

 bably compared them with the description and plate in the Flom 

 GrcEca (t. 454), which, however, undoubtedly refer to C. lllyricum. 

 True C. pilosum is a Siberian plant. 



21. C. ANGusTiFOLiuM Vitm. Summa Plant, iii. 137 (1789) = 

 C. strictitm L. Sp. Plant. 439 (1753) ; C. arvense L. j3. strictum 

 Lee. & Lamot. Cat. PI. Vase. Centr. France, 108 (1847). 



Syn. Centuncubis au(/mtifolius Scop. Fl. Carniolica, ed. 2, 322, 

 t. 19 (1772). 

 C. rigidus Scop. I.e. 



Cerastliun serpyllifollum W. Enum. hort. Beroliu. suppl. 26. 



C. mutahile var. strictiun Gren. Monogr. 69. 



C. arvense var. alpicolum Fenzl in Ledeb. Fl. Rossica,i.413. 



Centuncuhis is one of Adanson's genera, taken up by Scopoli, 



who describes five species, all referable to Cerastium. The pre- 



Linnean synonyms for this plant cited by Scopoli are^ 



