500 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



however, in the frequent development of two or even three 

 embryos from the cells of the egg-apparatus. 



Embryo-formation precedes endosperm development in B 



coehstis. 



In place of the usual two polar nuclei, groups of three to live 

 nuclei were met with in a few cases. 



The fully- developed seed contains about thirty endosperm-cells. 



R. B. 



Sarcochilus unguiculatus L. By E. Miethe (Orchis, vol. vi. 

 pt. vi. pp. 101-102 ; i plate). — This orchid, also known as Thrix- 

 spermum unguiculatum, bears pale yellow flowers with purple streaks. 

 It has no definite flowering period. The flower stem contains about 

 20 buds, not more than five of them open at the same time. This 

 takes place in the early morning ; by noon they have lost their strong 

 perfume and soon fade away. — S. E. W. 



Sarracenia Hybrids. By A. Hefka (Oestr. Gart. Zeit. vol. viii. 

 pt. ii. pp. 42-43 ; 1 fig.). — S. X Vogeliana (Courtii x Stevensi) is 

 a strong growing form resembling its parents. S. Laschkei (Courtii 

 X Mooreana) is weaker in growth than Mooreana. S. X Dies- 

 neriana (Courtii x flava) is quite distinct from its parents, having 

 leaves 12 inches long, greenish-yellow to brown in colour. — S. E. W. 



Saxifraga Aizoon, cochlearis, and lingulata. By F. Mader (Gard. 

 Chron. August 23, 1913, p. 134 ; 1 fig.). — Notes on these three species 

 as found in the Maritime Alps. — E. A. B. 



Saxifraga Aizoon, cochlearis, and lingulata. By R. Farrer (Gard. 

 Chron. Sept. 27, 1913, p. 213). — Further note on the same species. 



E. A. B. 



Saxifraga Stribrnyi (Bot. Mag. tab. 8496). — Bulgaria. Family 

 Saxifragaceae, tribe Saxifrageae. Herb, tufted. Leaves rosulate, 

 1 inch long, fleshy, glaucous. Inflorescence cymose, 4 inches long. 

 Flowers nodding, £ inch long ; calyx reddish-purple ; petals 

 carmine. — G. H. 



Schomburgkia. By R. Schlechter (Orchis, vol. vii. pt. iii. pp. 38- 

 43). — The Schomburgkias are divided into two classes, Eu-Schomburgkia 

 with short racemes and long bracts, and Chauno-Schomburgkia with 

 short bracts and branching inflorescence. 



The following varieties of Eu-Schomburgkia are in cultivation : 

 S. crispa Lindl., closely allied to S. marginaia, and S. undulata, is 

 a native of Guiana. The petals and sepals have a yellowish-brown 

 colour, and the labellum is pale violet-pink. S. Lyonsii Lindl. is 

 found in Jamaica and Cuba at 3000 feet above sea level. It has 

 white flowers, marked with violet. S. marginaia Lindl. is somewhat 

 similar to S. crispa. The flowers are larger, the petals and sepals are 

 brown, with paler edges, and the lip is white, with a touch of red at 

 the tip. 5. rosea Lindl. is a beautiful Orchid from the mountains 



