APPENDIX. 301 



reaching to, or even extending beyond, the edge of the disk. 

 No author except Crepin (Notes sur quelques Plantes rares ou 

 critiques de la Belgique), who is usually very accurate, states any- 

 thing concerning the colour of the sap of the allied plants. He 

 says that the sap is milky and does not turn yellow in any of them 

 except P. Lecoqii. If he is correct in this statement our plant 

 must either be P. Lecoqii or be unknown to him. He has 

 favoured me with leaves and stigmatic disks of his P. Lecoqii 

 and P. modestum (to which latter I was inclined to think that 

 our plant might be referable). Our plant has similar leaves to 

 those of the former; and also similar disks, in all respects except 

 in the want of a small central conical point, which he finds to be 

 present upon his plant, and which is very manifest upon the 

 specimens received from him. He is not certain concerning the 

 shape of the petals, but thinks that they are large and suborbicular 

 in his P. Lecoqii. He thinks, probably with justice, that little 

 confidence can be placed in their shape. If Jordan is right, as I 

 cannot but suppose, the petals of our plant are exactly like those 

 of P. modestum; and if Boreau is correct, as I equally believe, 

 they differ greatly from those of P. Lecoqii. When the flower is 

 in perfection the stamens of P. modestum " n'atteignent que les 

 f de la hauteur de la capsule." The name must therefore remain 

 somewhat doubtful. 



This plant is very abundant about Cambridge. 



2. P. Lamdttei (Bor.) ; filaments subulate ; stigmatic disk 

 broader than the capsule, patent at the edge, its center 

 convex-conic, ultimately nearly flat; capsule clavate, gra- 

 dually narrowing from near its top to its base, which is as 

 wide as the torus ; leaves pinnatifid, with distant, broad 

 entire, bluntish lobes. 



P. dubium, Eng. Bot. t. 644, Curt. Fl. Lond. ii. 104 (fasc. 

 v. 37). Hayne Gew. vi. 39. 

 Sap milky, not turning yellow in the air. Filaments 

 violet ; anthers brownish, just raised to the level of the edge 

 of the stigmatic disk. Stigmatic disk of the ripe capsule usually 

 slightly conical in the middle, with turned-up wavy edges, 

 nearly circular. Stigmatic rays not quite reaching to the edge of 

 the disk, which is obscurely lobed ; the lobes are separated by 



26 



