390 abstracts: botany 



Coal is found on the west and south sides of the uplift at or near the 

 base of the Lakota sandstone. All known occurrences are described and 

 the conclusion is reached that Cambria is the only locality which will 

 add to the record of coal produced in the Black Hills. 



An interesting feature of the Cambria coal is the occurrence in it of 

 gold, assays showing up to $2 a ton. Four kinds of coal are described : 

 bituminous, cannel, splint, and "pine needle," all occurring in the same 

 bed. The latter kind, resembling a mass of pine needles, is composed of 

 fibers of resin, circular to elliptical in cross section, which may originally 

 have filled some cylindrical vegetable cell. R. W. S. 



BOTANY. — Observations sur les ■ quelques especes indochinoises des 

 genres Atalantia et Glycosmis. Walter T. Swingle. Notulae 

 systematica, H. Lecomte, 2: 158-163, fig. I 1-6 , fasc. 5, 20 Dec. 

 1911 , (p. 158-160) and fasc. 6, 25 Mar. 1912 (p. 161-163) . 



A study of the material from Indo-China in the Herbarium of the 

 Museum d'Histoire naturelle, Paris showed that the plant recently 

 Jisted by M. A. Guillaumin in the Flore generale de lTndo-Chine as 

 Atalantia disticha (Blanco) Merrill, constitutes in reality a new species, 

 A. Guillaumini, Swingle. The former plant, common in the Philippine 

 Islands, is not yet known from the Asiatic mainland. 



This new species differs decidedly from A. disticha in having large 

 (nearly 1 inch in diameter) pulpless fruits containing very large seeds. 

 It also has larger leaves with darker colored, less pubescent petioles. 

 A . Guillaumini resembles A . ceylonica in having large seeds which almost 

 completely fill the fruit, but the veins are not curved as in this latter 

 species, nor are the stipules so large and foliaceous. This new species 

 should be tested as a stock for Citrus. 



A close study of the type material of A. pseudoracemosa, Guill., showed 

 striking concordance with the characters of the genus Glycosmis, especially 

 in the fine ferrugineous pubescence of the young leaves. Until the plants 

 included in the genus Glycos?nis are better known, the species in question 

 should be called Glycosmis pseudoracemosa (Guill.) Swingle. 



Glycosmis seems to include three types of species: (1), with compound 

 leaves like G. sqpindoides; (2), with simple leaves but long, slender 

 petioles articulate at both ends, like G. Bonii; (3), with simple leaves 

 and short petioles not articulate with the blade, like G. pseudoracemosa. 

 These three groups are more or less united by the type species of the 

 genus, G. cochinchinensis, which has polymorphous leaves. 



Maude Kellerman. 



