82 OliClUDE.E. [Cl. 4. 



vided or lobed. Stem frequently liltlc more than a 

 Scapus, rarely climbing. Leaves alternate, entire ; 

 the radical ones sheathing and ribbed ; those of the 

 Stem sessile, and scale-like. Flowers with sheath-like 

 Bracteas, terminal, mostly spiked, rarely solitary." 



Jussieu's genera, chiefly Linmuan, are Orchis, Sa- 

 lyr'mm, Ophn/s, fig. 70, Scrt^i&s^ Limodorum, T/ie- 

 lymitra Forst., Disa, Cypripedium, Biplnnula Com- 

 inerson, Arethusa, Pogonia Juss., Epidcndrum, and 

 I'amlla. 



Dr. Swartz and Mr. Brown have greatly improved 

 the history of this Order, and augmented its genera, 

 of which New Holland affords many new ones. From 

 the remarks of these writers I would reform Jussieu's de- 

 scription, but without adopting their ideas of the integu- 

 ments of the Flower, which I understand as follows. 



Calyx superior, of 3 leaves, fig. 70, a, a, a, either 

 spreading or converging ; the solitary upper one often 

 vaulted, rarely spurred at the base ; the 2 lateral ones 

 equal, sometimes combined at the bottom. Petals 

 2, b, b, ascending between the lateral and the upper- 

 most calyx-leaves, and less than either, sometimes 

 converging. Nectary, c, a lip, undivided or lobed, 

 projecting, or dependent, between the 2 lateral calyx- 

 leaves in front, often with one concave spur, rarely 2, 

 from its base behind, in which, or occasionally in a 

 chink on the, sometimes crested, disk of the lip, the 

 honey is lodged ; " the lip now and then bears a 

 stalked appendage, whose stalk is occasionally irrita- 



