354 abstracts: botany 



monotypic genus, Aeglopsis. Both of these genera are hard-shelled 

 citrous fruits related to the Indian Aegle [Belou] marmelos. 



The genus Balsamocitrus is divided into two sections: Eubalsamo- 

 citrus, having a small disk and twice as many stamens as petals; and a 

 new section, Afraegle having a larger, lobed disk and four times as many 

 stamens as petals. 



The type species of the genus, B. Dawei, Stapf, from the Budongo 

 Forest of Uganda, belongs to the first of these sections. 



The new section, Afraegle, is created for B. paniculata (Schum.) 

 Swingle. This plant was first collected by Thonning and published by 

 Schumacher in 1827 or 1828 as Citrus Paniculata. The original descrip- 

 tion of Thonning given by Schumacher is sufficient to show that the 

 plant must be allied to Balsamocitrus. 



There is a cotype of this species in the Jussieu herbarium in Paris 

 which is identical with Aegle Barteri, Hook, and Limonia Warneckei 

 Engl., as proved by comparison with the types of these latter species 

 preserved at Kew and Berlin. 



Citrus paniculata Schum., which has been a puzzle to botanists for 

 more than a century, is therefore the oldest name for the plant in ques- 

 tion. 



The third species, B. gabonensis, Swingle, n. sp., cannot yet be defi- 

 nitely placed in either of the section given above, as its flowers are not 

 known. The fruits, which are used as powder flasks by the natives 

 of French Congo and Kamerun, are large (3| inches in diameter), 

 slightly pyriform, with numerous seeds. 



In 1907 M. Chevalier found at Sassandra, Cote dTvoire, a shrub or 

 small tree much resembling Balsamocitrus, but which is in reality a new 

 genus, Aeglopsis. It differs from Balsamocitrus principally in the struc- 

 ture of the ovary, which is only 6-locular The cortex of the fruit is 

 much thinner and the cells are large and triangular, with thin walls. 

 The leaves are simple, short-petioled, with numerous glands. This new 

 genus is founded on A. Chevalieri, Swingle, n. sp., which occurs at Sas- 

 sandra and at Tabu, near the eastern frontier of Liberia. 



Aeglopsis has a special interest for trial as a stock for Citrus, since 

 it is said to resist more or less salt in the soil. 



All the species mentioned above are figured in the two text cuts and 

 four plates. A half tone plate is also given of Aegle glutinosa (Blanco) 

 Merrill, a related plant from the Philippines. 



Maude Kellerman. 



