170 CXXXIII. ORCHIDEE (ROLFE). [Mystacidium. 
Spur clavate or subclavate. 
Leaves 6—10 lin. broad : : c . 10. M. clavatum. 
Leaves 13-3 lin. broad 3 ` S . 11. M. Schumanni. 
Racemes longer, many-flowered. 
Stems elongated and climbing. 
Leaves distinctly bilobed (Angolan species). 
Lip reniform-orbicular or transversely ob- 
long. ; S S : ` . 12. M. xanthopollinium. 
Lip cuneate . ` S 4 ; . 13. M. rutilum. 
Leaves obscurely bilobed S é e . 14. M. productum. 
Stems short. 
Spur 6 lin. long . 5 S : - , 15. M. curvatum. 
Spur not 3 lin. long. 
Leaves 1-2 in long. 
Petals ovate, acute S S ` . 16. M. Tridens, 
Petals dolabriform i S . 17. M. dolabriforme. 
Leaves 3-5 in. long . S ` : . 18. M. pedunculatum, 
Leaves equitant S S Š S ; S . 19. M. distichum. 
1. M. infundibulare, Rolfe. Stems elongate, climbing; inter- 
nodes 1-1} in. long. Leaves lanceolate-oblong, or linear-oblong, 
obscurely and very unequally bilobed, 5—6 in. long, 3-1 in. broad; 
lobes obtuse. Peduncle 1-flowered, 2} in. long. Bracts broadly ovate, 
3 lin. long; apex mucronate. Pedicels 2 in. long. Flowers white, 
fragrant. Sepals and petals elongate-linear, subacute, 2-24 in. long. 
Lip very large; limb quadrate-obovate, very abruptly and shortly 
acuminate, 24 in. long; spur 4—5 in. long, base narrowly funnel-shaped, 
slender in the upper two-thirds, Column short, stout, about 3 lin. long. 
—Angrecum infundibulare, Lindl. in Journ. Linn. Soe. vi. 136. 
Lower Guinea. Princes Island, Barter, 2005! 
A very distinct and remarkable species. 
2. M. Astroarche, Rolfe. Plant caulescent, 1 foot high. Leaves 
elliptic-oblong, obtuse, obscurely and unequally bidentate, 3-4 in. 
long, 3-1 in. broad. Scapes 4-5 in. long, 143-flowered at the apex- 
Bracts ovate, obtuse, 2-3 lin. long. Sepals lanceolate, 1}-2 in. long- 
Petals slightly smaller than the sepals. Lip similar to the petals but 3 
little broader ; disc with a slight median keel ; spur pendulous, filiform, 
slightly thickened at the apex, 1 in. long. Column short and broad ; 
anther slender, depressed; pollen globose; discs squamiform, distinct ; 
rostellum short and broad.—Angrecum Astroarche, Ridl. in Bolet. Soc. 
Brot. v. 199, t. C, fig. a. 
Lower Guinea. Island of St. Thomas: Nova Moka, 2900 ft., Quintas, 4! 
A large-flowered species allied to the preceding. 
3. M. longicaudatum, Rolfe. Stems elongated, erect and climb- 
ing. Leaves linear-oblong, obliquely and obtusely bilobed, 4—44 in. long, 
5-7 lin. broad. Scapes suberect, 4—6 in. long, 2—3-flowered, with two 
or three tubular sheaths below. Bracts broadly ovate, obtuse, 6-7 lin. 
long. Pedicels 2-2} in. long. Sepals and petals triangular-lanceolate, 
