MACLOSKIE : ORCHIDACEyE. 32 I 



b2. Leaves oblong-lanceolate, obtuse, petiolate ; the cauline acute, sessile ; flowers very 



yellow. commersonii. 



3. Leaves lanceolate, acute ; bracts large. gaudichaudii. 



64. Stem with 3 leaves, which wither at anthesis. Bracts sheath-like, linear-ligulate. 



penicillata. 

 Az. Leaves chiefly basal. 



b. Leaves lanceolate, acuminate. kingii. 



bz. Leaves subelliptical, obtuse. 



c. Spike 3-7-flowered. Bracts ovate-lanceolate. . magellanica. 



c2. Spike long, lax ; bracts lanceolate. odoratissima. 



A$. Spike 1 6 cm. long, about i8-flowered. Lower bracts longest, all exceeding the flowers. 



Labellum rhombic, lobed. patagonica. 



A^. Flowers rose-white. 



b. Spikes 10-15 -flowered ; flowers small; labellum partly pectinate. albo-rosea. 



b2. Spike lo-flowered ; flowers large ; labellum serrate-toothed, warty. pleistodactyla. 



b$. Spike 3-6-flowered ; flowers large ; wings and entire labellum yellowish, spegazziniana. 

 64. Spike 2-3 (6) -flowered ; flowers obscure ; labellum 2-lobed, papillose. 



hystrix. 



A$. Spikes 2-3-flowered ; flowers large, green-white ; labellum 3-toothed. leontoglossa. 



A6. Spikes 2-4-flowered ; flowers rusty ; labellum 3 -lobed. . ferruginea. 



i. C. ALBO-ROSEA Kracnzlin & Speg. 



Spikes io-i5-flowered. Flowers small, the wings apically very thick- 

 clavulate. Labellum short, apically obtuse-callous, the rest densely pec- 

 tinate-fimbriate. Tepals rose-white ; bracts rose colored. 



S. Patagon., in elevated meadows along Rio Chico ; by Rio Carren- 

 leofu. 



2. C. BUGAINVILLEANA Franchet. 



Stem 15-30 cm. high. Leaves dimorphous, narrow-lanceolate and long- 

 petioled in sterile fascicles, and ovate cauline leaves, the upper being 

 long-sheathing, short and complicate. Flowers 4-7, rather large, with 

 short pedicels. Bracts ovate, mucronate-setaceous, embracing the flower. 

 Perianth white, tesselated with black lines ; sepals longer than the petals. 

 Labellum long-stipitate, obscurely 3-lobed, y-crested, with inflexed fim- 

 briate margins. 



Magellan (Commerson, 1767). 



3. C. CHICA Krnzl. & Speg. 



W. Patagon., not rare in the woods along Rio Aysen. (To be de- 

 scribed in F. Kraenzlin's Monograph of Chlortea.} 



