Bryophyten. — Floristik und Systematik der Phanerogamen. 331 



S[mith], A[nnie] M[0RRILL], Notes on Hylocomium triquetnim 



Beringianiim Card, and Ther. and Bryiim proligeriim 



(Lindb.) Kindb. (The Bryologist. VII. May 1904. p. 52.) 



The former is reported from Flathead County, Montana, and 

 from the Cascade Mountains, Washington. Notes on the growth 

 of the iatter at Chilson Lake, New York. Maxon. 



Bessey, C. E., Plant Mii^ration Studie s. University 

 S tu dies. (Univ. of Nebraska. Vol. V. Jan. 1905. p. 1—27.) 



Considers the various devices for the distribution of the seeds and 

 fruits of the native trees of Nebraska. Finds that those forms with 

 wings on seeds or fruits, or with hairs on seeds, have most effectiveiy 

 spread themselves, while the forms with fleshy fruits are scarcely behind 

 in this regard. Trees with edible nuts or with rolling baüs of fruit like the 

 sycamore {Plataniis) are apparently not so well adapted for migration. 

 A series of maps showing the tree distribution of the State accompanies 

 the article. H. M. Richards (New York). 



COCKERELL, T. D. A., Notes on Tetraneiiris linearifolia. (Proc. 

 Biol. Soc. Washington. 1904. XVIi. p. 11 — 112.) 



T. linearifolia appears te be very variable, but the writer is unable 

 to say whether these differences are racial. A number of specimens 

 from Texas-, Oklahoma and Kansas were studied. The author 

 distinguishes two subspecies: Tetraneiiris linearifolia oblongifolia (T. ob- 

 longifolia Greene), and T. linearifolia dodgei, the latter a new sub- 

 species from Monterey^ Mexico (U. S. N. M., 27, 471) wliich chiefly 

 differs from the species by its foliage, the radical leaves being pinnatifid 

 with broad lateral lobes. In the subspecies the aristae of the pappus are 

 shorter than linearifolia or oblongifolia. Hus. 



HiERN, W. P., The stability of trivial names. (Journal 

 of Botany, London. Vol. XLIII. No. 510. 1905. p. 177— 180.) 



This paper consists of a discussion of Linnean Synonyms, which 

 are arranged under eleven heads according to the various changes to 

 which the trivial name is subjected. Examples are quoted under each 

 head, illustrating the different cases considered (e. g. trivial name 

 changed without change of generic name, — Tournefortia glabra = T. 

 cymosa ; trivial name changed with change of generic name^ — Satureja 

 origanoides = Cunila mariana; trivial name retained with change of 

 generic name, — Triticum caninmn = Elymiis caninus, etc.). 



F. E. Fritsch. 



Maiden, J. H., Critical Revision of \.\\q Genus Eucalyptus. 



Part VI. p. 149—180. With four plates. 1905. 



Three species are dealt with in this part^ the Information about each 

 being grouped under description, Synonyms^ ränge and affinities. Whilst 

 mainly treating of the plants from the systematic point of view the chief 

 points of economic interest are recorded as follows: 



Eucalyptus amygdalina Labill. Timber nearly white. When newly 

 cut, drying to pale brown, generally of inferior durability. The oil con- 

 tains eucalyptol, pinene, phellandrene, the peppermint ketone, eudesmol 

 und various alcohols. 



E. linearis^ Dehnhardt. Timber white and moderatly fissile. 



E. Risdoni, Hook. f. Timber pale coloured, and rather fissile, too 

 small to be of economic importance. The essential oil of this species 

 eucalyptol, phellandrene pinene and the peppermint ketone. 



W. G. Freeman. 



