130 TAXONOMY, VASC. PLANTS [BoT. Absts., Vol. X, 



823. [Druce, G. C] [Rev. of: Lindman, C. A. M. Svensk Fanerogamaflora. viii + 

 639 p. 1918 (see Bot. Absts. 8, Entry 727).] Bot. Soc. and Exchange Club British Isles 

 Rept. 5:599-603. 1919 [1920]. 



824. Druce, G. C. [Rev. of: Rolpe, R. A. The British marsh Orchises. Orchid Rev. 

 26: 162-166. 1918.] Bot. Soc. and Exchange Club British Isles Rept. 5: 608-612. 1919 [1920]. 



825. Gay, J. Channel Island plants. Bot. Soc. and Exchange Club British Isles Rept. 

 5: 138-142. 1917 [1918]. — Senecio erraticus Bertol. and Jasione perennis Lam. are given. — 

 G. C. Druce. 



826. Gregory, E. S. Some notes on British violets, with additional localities. Bot. 

 Soc. and Exchange Club British Isles Rept. 5: 148a-14Sg. 1917 [1918]. 



827. Hbnrard, J. Th. Bijdrage tot de kennis der Nederlandsche Adventiefflora. [Con- 

 tribution to the knowledge of the Dutch introduced flora.] Nederland. Kruidk. Arch. 1920: 

 251-257. 1921. — Critical remarks are given on the following grasses introduced in the Nether- 

 lands: Panicumbarbipulvinatum Nash, Cenchrus pauciflorus Benth., Sporobolus Berteroanus 

 Hitch. & Chase.— TF. H. Wachter. 



828. Holm, Theo. Chionophila Benth. A morphological study. Amer. Jour. Sci. 1: 

 31-38. 15 fig. 1921. — The genus Chionophila is closely related to Chelone and Pentstemon. 

 As now characterized the genus is monotypic with the species Chionophila Jamesii Benth. 

 of the higher mountains of Colorado and Wyoming. Formerly the genus included C. Tweedyi 

 Renders, of Montana and Idaho, but this species is now placed in the genus Pentstemonopsis, 

 intermediate between Chionophila and Pentstemon. Chionophila Jamesii is characterized 

 at length, also the internal structure of the roots, the flower-bearing stem, and the leaf, 

 receives special attention. Ten figures illustrate the flower, fruit, and the internal structure 

 of the vegetative organs. Pentstemonopsis is contrasted and the conclusion is reached that 

 it is a good genus. Five figures give the details of flower and fruit. — T. J. Fitzpatrick. 



829. Holm, Theo. Studies in the Cyperaceae. XVII. Notes on Carex podocarpa R. Br., 

 C. montanensis Bailey, C. venustula Holm, C. Lemmoni W. Boott, and C. aequa Clarke. Amer. 

 Jour. Sci. 48: 17-26. Fig. 1-12. 1919. — Robert Brown's Carex podocarpa has been entirely 

 misunderstood, and according to C. B. Clarke (in litt.) the specimen so named by R. Brown 

 has proved to be a young specimen of C. rarifiora Sm. C. montanensis has been referred to 

 C. podocarpa by Klikenthal, but erroneously so, since C. rarifiora is phyllopodic. A brief 

 discussion is given relative to the systematic position of C. montanensis being a near ally of 

 C. venustula and C. spectabilis Dew.; furthermore of C. Lemmoni, which for the last 30 years 

 has been identified as C. ablata Bail.; it is a member of the *S<enocorpae Holm. C. aegua is the 

 species which W. Boott enumerated as C. fulva var. Hornschuchiana (Bot. of California); 

 its affinity is with C. diluta M. Bieb. of the Spirostachyae Drej. — Theodore Holm. 



830. Holm, Theo. Studies in the Cyperaceae. XXVIII. Amer. Jour. Sci. 49: 195-206. 

 15 fig. 1920. — An extended study and diagnosis of Carex Franklinii Boott and C. spectabilis 

 Dewey is presented. C. Franklinii was first found by Drummond in the Rocky Mountains 

 at about latitude 59°. It was not again collected until recently by James M. Macoun in 

 Alberta. A conspectus of the section Stenocarpae, to which the species belongs, is given. 

 C. spectabilis belongs to the section Melananthae. Of this species 2 new forms and 3 new 

 varieties are delimited. — T. J. Fitzpatrick. 



831. Holm, Theo. Types of Canadian Carices. Canadian Field Nat. 33: 72-77. 1919.— 

 Among the 39 greges enumerated by the writer in "Greges Caricum" (Amer. Jour. Sci. 16: 

 1903) only 5 are absent from Canada, namely: Psyllophorae (Europe and Azores), Chionanthae 

 (Europe), Leucocephalae (Virginia), Echinochlaenae (Australia), and Podogynae (Japan). 

 In Canada the Microrhynchae, Acorastachyae, Echinostachyae, and Physocarpae are the best 

 represented, being rich in species and widely distributed. Considered altogether the genus 



