78 MORPHOLOGY AND TAXONOMY, ALGAE [Bot. Absts., Vol. V, 



589. Weingart, Wilh. Spharite im Hypoderm von Cereen. [Sphere crystals in the 

 hypoderm of Cereus.] Monatsschr. Kakteenkunde 29: 45^18. 1919. — An account is given 

 of the sphere crystals in Cereus Hirschtianus and C. Lauterbachii, and of the effect upon them 

 of various reagents. The spherites contain no proteids and are allied to inulin. They con- 

 stitute reserve material. — A. S. Hitchcock. 



590. Woodward, R. W. Further notes on Philotria. Rhodora 21: 218-219. 1919 — 

 In a recent issue (Rhodora 21: 114. 1919.), writer reported what appeared to be Philotria 

 angustifolia growing in brackish water at Old Lyme, Connecticut. On revisiting the station 

 in August 1919 both flowers and fruit were examined while fresh, and from this examination 

 detailed descriptions of the staminate and pistillate flowers and the fruit are given. Writer 

 has not had an opportunity to verify his identification by comparison with authentic material 

 but believes that it is P. angustifolia or some species closely related to it. — James P. Poole. 



MORPHOLOGY AND TAXONOMY OF ALGAE 



E. N. Transeau, Editor 



591. B0rgesen, F. The marine algae of the Danish West Indies. Vol. 3. Rhodo- 

 phyceae. Dansk Bot. Ark. 3: 145-240. Fig. 149-230. 1917.— This part completes the family 

 Squamariaceae, from p. 144, 1915, of the same volume. (This family contributed by Mme. 

 A. Weber-van Bosse), and includes the families Hildenbrandiaceae, Corallinaceae (the sub- 

 family Melobesieae by Mme. Paul Lemoine, text in French) and part of the Ceramiaceae. 

 New are Amphiroa rigida Lamour. var. antillana B0rgesen; Mesothamnion caribaeum, nov. 

 gen. & sp. B0rgesen; Antithamnion antillarum B0rgesen; Spyridia aculeata var. disticha, 

 and its forma inermis B0rgesen. New combinations: Lithophyllum accretum (Fosl. & Howe) 

 Lemoine; Lithophyllum (?) propinquum (Fosl.) Lemoine; Melobesia (Lithoporella) allantica 

 (Fosl.) Lemoine; Melobesia (Litholepis) affinis (Fosl.) Lemoine; Porolithon mamillare (Harv.) 

 var. occidentale (Fosl.) Lemoine; Porolithon Boergesenii (Fosl.) Lemoine. Mme. Lemoine's 

 treatment of the Melobesieae has a key to the 20 species, and list of the other species known 

 from the Antilles as a whole; also a comparison with the species of other regions, showing a 

 strong resemblance to those of the Mediterranean, and a somewhat less marked though still 

 distinct resemblance to those of the Indo-Pacific. 19 of the 20 species are figured, either in 

 section or in habit or both; most of them for the first time. Two species are recorded for the 

 first time in America: Jania adhaerens Lamour., of the Red Sea, Indian Ocean and Japan; 

 and J. decussato-dichotoma Yendo, of Japan. Jania sp., Grifithsia sp., Callithamnion sp., 

 Antithamnion sp., are described and the last two figured; probably new, but sterile. — Frank 

 S. Collins. 



592. B0rgesen, F. The marine algae of the Danish West Indies. Vol. 3. Rhodo- 

 phyceae. Dansk Bot. Ark. 3 : 241-304. Fig. 281-307. 1918.— Completes the family Cerami- 

 aceae and begins the family Rhodomelaceae. New are Laurencia chondrioides B0rgesen; 

 Polysiphonia sphaerocarpa B0rgesen. — Frank S. Collins. 



593. B0rgesen, F. The marine algae of the Danish West Indies. Vol. 3. Rhodo- 

 phyceae. Dansk. Bot. Ark. 3 : 305-368. Fig. 308-360. 1919.— Completes the family Rhodo- 

 melaceae and covers the families Delesseriaceae, Bonnemaisoniaceae, Gigartinaceae, and 

 Rhodophyllidaceae. New are Dasya caraibica B0rgesen; Cottoniella arcuata B0rgesen, nov. 

 gen. et sp. Dasya sp. is described and figured, probably new species but sterile. For Lopho- 

 cladia trichoclados are described and figured the cystocarps and antheridia, hitherto unknown. 

 As in previous parts of this paper, full descriptions are given of all species, and many details 

 are described and figured for the first time. — Frank S. Collins. 



594. Boyer, Charles S. Rare species of North American Diatomaceae. Bull. Torrey 

 Bot. Club 47: 67-72. PI. 2. 1920. — The following new species of diatoms are described: Au- 

 liscus floridanus , A. hyalinus, Dimerogramma intermedium, Glyphodcsmis tumida, G. campechi- 



