MALAXIDEyE—LIPARlS 113 



to extinction through drainage or cultivation. With it commonly grow rushes, sedges, 

 bog-bean, Anagallis tenella, Hydrocotyk, Scutellaria, Epipactis palustris. Orchis incarnata, 

 O. latifolia, O.pratermissa, etc. In the Welsh station the ground was dry when hiparis 

 was found, but was evidently wet in winter, a case in which the water-storing tracheids 

 in the coverings of the pseudo-bulbs would be of immense value. 



Distribution. Norfolk, Suffolk, Cambs., Hunts., Surrey, Kent (?), Glamorgan, ' 

 Carmarthen. In Norfolk it occurred in 1883 in great profusion, as many as 6-10 

 plants in a clump, with abundant Carex paradoxa; in Cambridge it is much less 

 plentiful and more scattered. It is believed to be extinct in the Kent locality 

 (Sowerby, E. B.), and is nearly exterminated in several localities through the drainage 

 of the fens. Not recorded for Ireland or Scotland. Southern Scandinavia, Denmark, 

 Germany, Austria, France, Upper Italy, Central and S. Russia, N. America. 



LiPARis LcESELii, Rich., Mem. Mus. Paris, iv, 60 (1818). Ophrys Lceselii L., 

 Sp. pi. (1755). O. LATIFOLIA L. (1755). O. PALUDOSA, Flora Danica (1782). 

 O. TRiGONA Gil. (1792). Cymbidium Lceselii Swartz (1799). Malaxis 

 Lceselii Swartz (1800). Serapias Lceselii Hoffm. (1804). Sturmia 

 Lceselii Rchb. p. (1826). 



Included by Linn^us in his Flora suecica in the genus Herminium.'^ In the Species 

 plantarutn both were included in Ophrys. 



Fertilisation. There is no sign of self-pollination, and the species must therefore 

 depend on the agency of small insects for the transport of the poUinia from flower 

 to flower, but I can trace no record of actual observations of their visits. Owing 

 to the rarity of the plant, and the inconspicuousness of the flowers, such observations 

 are extremely difficult. The maturing of numerous seed-capsules shows that the 

 flowers are well visited by insects. Two plants sent by me from Switzerland in 1925 

 to Mr St Quintin of Scampston Hall, Yorks., had four and five flowers respectively 

 in 1929, but set no seed-capsules, whilst two Canadian specimens in the same green- 

 house in a contiguous pan, with seven and six flowers respectively, each set four 

 capsules. It seems therefore certain that L. hceselii is not self-fertilising, even in the 

 absence of insect visits. It is curious that insects should have been attracted by the 

 Canadian plants, to the exclusion of the Swiss ones, which were quite healthy. 



Genus X CORALLORHIZA Haller 



Column long, erect, not winged. Anther Iddney-shaped, hinged to back of column 

 and soon falling off, each of the two cells divided by a partition. Pollinia four, sub- 

 globose. Stigma triangular or oval, in front of column just below anther. Rostellum 

 small, globular. 



' Riddelsdell, loc. cit. ^ A. and G. Sjti. in, 805. 



GBO IJ 



