44- ORCHIDACEAE I59 



82. Gland of the rostellum covered bj^ scales. Petals 2 — 4-lobed. Lip with 

 a long spur, a clawed 3 — 5-lobed middle-lobe, and incurved sickle- 

 shaped side-lobes. — Species i. Madagascar and Mascarenes. 



Cryptopus Lindl. 



Gland of the rostellum without scales 83 



8^. Lip with a short, conical spur ; side-lobes embracing the column. — Species 

 9. Madagascar and neighbouring islands. {Aeonia Lindl.) 



OeoDia Lindl. 

 Lip with a long, thread- or club-shaped spur 84 



84. Sepals unequal, the lateral much longer than the middle one, united 



with the petals above. Lip deeply 3-cleft. Stem climbing. — Species 



I. German East Africa Angrecopsis Kraenzl. 



Sepals and petals subequal, free 85 



85. Sepals and petals erect. Lip entire. Pollen-masses with very short 



stalks. — Species i. Island of Reunion. {Pectinaria Cord., under 

 Angreciim Thou. Macroplectriim Pfitz. or Mystacidiiim Lindl.) 



Ctenorchis K. Schum. 

 Sepals and petals spreading 86 



86. Column bent backwards. Stalks of the pollen-masses attached to a com- 



mon gland. — Species 70. Tropical and South Africa. Some are used 

 as ornamental plants. (Plate 26.) . . . Listrostachys Reichb. fil. 



Column straight. Stalks of the pollen-masses usually attached to two 

 separate glands.- — Species 40. Tropical and South Africa. Some 

 are used as ornamental plants. (Including Gitssonia A. Rich.) 



Mystacidium Lindl. 



^7- {73-) Pollen-masses 2, grooved, with a large transverse appendage at 



the base, attached to the gland of the rostellum by a broad stalk. Lip 



usually large. Pseudobulbs formed by several internodes, rarely by a 



single one or wanting. [Tribe CYMBIDIEAE.] SS 



Pollen-masses 4, rarely 2, without an appendage and usually without a 

 stalk. Lip usually small. Pseudobulbs formed by a single internode, 

 bearing one or two leaves 92 



88. Lip distinctly spurred. 89 



Lip not distinctly spurred 9^ 



89. Pollen-masses gi'ooved. Stem with a pseudobulb. — Species 5. Madagas- 



car and Mascarenes. (Under Eulophia R. Br.) . Eulophiopsis Pfitz. 



Pollen-masses not grooved. Stem without pseudobulbs. — Species i. 



Madagascar Lemurorchis Kraenzl. 



90. Pollen-masses attached to two processes of the stalk. Stem slender, 



without pseudobulbs, many-leaved. — Species i. :\Iadagascar. Used 



as an ornamental plant Grammatophyllum Blume 



Pollen-masses attached to a common stalk without processes. Stem with 

 more or less distinct pseudobulbs 9^ 



91. Pseudobulbs enveloped by the sheaths of the leaves inserted below and 



upon them. — Species 4. Madagascar. Used as ornamental plants. 



Cymbidium Swartz 



