CYPEIPEDIUM. 57 



map must, in several cases, be accepted only as approximately- 

 true; the names given by plant collectors are ofteu not to be found 

 on any map within reach and are, moreover, frequently misleading. 



Cultural Note. — The cultural treatment of all the members of this 

 section, both species and hybrids, is the same as that of the East 

 Indian Cypripedes, with the exception of the temperature, which, on 

 account of the altitude at which the species occur in a wild state, 

 should be 3° — 5° C. (5° — 9° F.) lower. All the species in cultivation, 

 with the exception of Gypripedium Schlimii and, perhaps, 0. Klotzscliianum, 

 whose scapes are few-flowered, continue in flower for several months ; 

 for this reason the flowering season of each is not given in the following- 

 pages. 



Cypripedium Boissierianum. 



Leaves lineardigulate, 20 — 25 or more inches long. Scapes stoutish, 



erect, as long as the leaves; bracts, both- cauline and floral, lanceolate, 



acuminate, 3 — 4 inches long, somewhat inflated. Flowers 6 inches across 



vertically, pale yellow-green, veined and reticulated with dark green, the 



sepals and petals margined with white ; upper sepal lanceolate, acuminate, 



crisped at the margin ; lower sepal oval-oblong, concave, as broad again 



as the upper sepal and less conspicuously crisped at the margin ; petals 



linear-ligulate, broader at the base, gradually attenuated toAvards the 



tip, 4 — 5 inches long, spreading horizontally, twisted, with crisped 



margins : lip prominent, the sac sub-cylindric, brownish in front, the 



infolded lobes broad, much spotted with greenish brown, the sinus 



between the sac and the infolded lobes with a triangular process. 



Staminode sub-rhomboidal with a notch in the back margin. 



Cypripedium Boissierianum, Rchb. in lit, Xen. Orch. I. p. 3 (1854). Gard. Chron. 

 1. s. 3 (1887), p. 143, icon. xyl. C. reticulatum, Rchb. in Gard. Chron. XVIII. (1882), 

 p. 520. Selenipedium Boissierianum, Rchb. Xen. Orch. I. p. 3. Id. p. 176, t. 62. 

 S. reticulatum, Rchb. Xen. Orch. II. p. 223.* 



The early botanical history of this species is closely connected 



with that next described (Gypripedium caudatum). That they were 



both discoveied by the Spanish botanists, Ruiz and Pavon, during 



their exploration of Peru and Chili (1778 — 89), is proved by the 



existence of herbarium specimens gathered by them, the genuineness 



of which has never been called into question, and which were 



doubtless from the Huanuco district which they explored soon after 



their arrival in Peru, and to which they again subsequently returned 



(Florce Peruviance et Ghilensis Prodromus Prcef, p. xi.) Nothing 



more was known of either species till William Lobb's mission to 



* Selenipedium Czerwiakowianum mentioned here is unknown to us. 



