202 THE JOURNAL OF BOTANY 



I am indebted to Mr. N. E. Brown for assistance in working 

 out the structure of this plant. 



Abisjema microspadix Engler, Jahrb. xxxvii. 112. 



Sarawak, C. J. Brooks. 



This plant was described from specimens collected in Java by 

 Zollinger, and is an addition to the flora of Borneo. 



Piptospatha elongata N. E. Br. This Bornean plant was 

 described by Engler (Bot. Jahrb. i. 183) under the name of 

 Rhynchopyle elongata. N. E. Brown transferred it to his earlier 

 genus Piptospatha, the type of which is Piptospatha insignis, also 

 from Borneo. In 1910 (Bot. Mag. t. 8330) he described and 

 figured under the name of Gamogyne pulchra a very pretty Borneo 

 Aroid obtained by me in a pool at the foot of a cascade on 

 Mt. Gading, near Lundu, in Borneo ; I find, however, that this 

 was the exact spot on which Beccari collected the plant later 

 described by Engler as Rhynchopyle elongata (Beccari, Nella 

 Foresti di Borneo, p. 168), and there is no doubt that Gamogyne 

 pulchra and Rhynchopyle elongata are the same thing. Rhyn- 

 chopyle and Gamogyne seem to be generically identical, and are 

 distinguished from Piptospatha by their truncate stamens and 

 crowded angular ovaries, Piptospatha having a prolonged con- 

 nective to the anther and separated cylindric ovaries. 



The Malay Peninsula plant described by me (Materials for 

 Flora of Malay Peninsula, iii. 35) as Piptospatha elongata, and 

 also by Hooker (Fl. Brit. Ind. vii. 539) under Schismatoglottis 

 elongata Engler, is certainly distinct from the Borneo plant 

 described by Engler as Rhynchopyle elongata. It differs in the 

 broader, thinner foliage, smaller narrower white spathe, and 

 truncate woolly-topped stamens. 



Since writing the above Engler has published the part of the 

 Pflanzenreich dealing with this genus. He retains the genus 

 Gamogyne (for G. Burbidgei N. E. Br. only), and makes the Malay 

 Peninsula plant a variety of Piptospatha elongata under the name 

 var. perakensis. It is impossible to retain it as a variety of this 

 species, so it will remain as Rhynchopyle perakensis Eidl. 



Explanation of Plate 527. — Aridarum montanum Ridley. 1, plant natural 

 size; 2, end of leaf and cross-section of same; 3, spathe cut open; 4, several 

 male flowers viewed from above ; 5, three views of a male flower with accom- 

 panying pair of sterile flowers; 6, two female flowers; 7, two ovules. Figs. 

 2-7 enlarged. 



MA1ANTHEMUM BIFOLIUM Schmidt IN ENGLAND. 



By A. Bruce Jackson. 



These observations on the occurrence and distribution of 

 Maianthemum in England are the outcome of a visit paid last 

 summer to Ken (or Caen) Wood, near Hampstead, where I was 

 much interested to find it still nourishing in its locus classicus. For 

 the purpose of establishing its claims as a native species in the 



