28 THE JOURNAL OF BOTANY 



Colocasia antiquorum Schott. Naturalized in the Funclas, 

 where it is extensively cultivated in moist ground by the streams 

 near the geysers. From the tuberous roots, "Tara," a mucila- 

 ginous fecula, is obtained, and largely used as an article of diet. 



Garex macrostyla Lapeyr. var. 'peregrina L. H. Bailey. Furnas. 

 — G. Paircei F. Schultz. Dr. Carreiro had kindly sent this from 

 St. George Island under the name G. muricata. New to the Azores. 



Festuca Myurus L. New to San Miguel. I saw it on' some 

 wall-tops in Ponta Delgada ; it is not quite typical, and, as Pro- 

 fessor Hackel says, shows an approach to F. Broteri. 



Dicksonia GulcUaLi'Iler. Furnas; common and very beautiful. 



Adiantum Gapilliis-veneris L. About the hot springs of the 

 Furnas. 



Asplenium Hemio7iitis Li. Sete Cidades. — A. monantJinm Li. 

 Furnas. — A. lanceolatum Huds. Ponta Delgada, &c. — A. marinum 

 L. Capellas. 



Wooclwardia radicans Sm. Fundas ; abundant. 



Blechnum Spicant Eoth. Fundas. 



Dryopteris aristata Druce. Very luxuriant in the Fundas ; 

 Sete Cidades. — D.paleacea Druce. Sete Cidades. — D. mollis (Sw.). 

 Sete Cidades. 



Gymnogramme Tetta Schl. Sete Cidades. 



Hymenophyllitm unilaterale Bory. Fundas. — H. tunhrigensc 

 Sm. Sete Cidades. 



Osmunda regalis L. Fundas. 



Selaginella Kraussiana Br. Fundas ; Sete Cidades ; north of 

 Ponta Delgada. 



Lycopodium cernuum L. Fundas ; a most beautiful species. 

 Sometimes growing on concretionary rock deposited by the hot 

 springs. — L. Selago L. var. suberectum Baker. Fundas. 



Equisetuvi ramosissimum Desf. In the Fundas. 



I gathered at Fundas Targiona liypophylla L. and Gousinia 

 marcliantioides Raddi, which appear to be additions to the Azores. 

 The few mosses I collected included one new to science, Bryum 

 clavcUulitm Cardot &, Dixon, besides five additional to the Azores, 

 i. e. Tivnniella Barhula Limpr., Barbula gracilis var. viridis B. & S., 

 Tortilla muralis Hedw., Barbula vinealis Brid., and Bryum mitrale 

 Wils. ; these, with other species gathered by me, have already 

 been recorded by Mr. H. N. Dixon in Journ.-Bot. 1909, 372. 



THE GENUS DIASTELLA. 



By E. p. Phillips, M.A. 



The genus Diastella was founded in 1809 in Knight's ProteecB, 

 p. 61, and defined as follows: — "Diastella Salisb. Flores in 

 Capitulo plus minus truncate terminali. Bractea 1 inter singulos, 

 praeter Involucrum gemmacearum, membranacese. Petala vix 

 irregularia, post anthesin apice erecta, basi tantum cohtierentia. 

 Pericarpium ut in Leucadendro. Stylus barbatus, tandem de- 



