DR. LINDLEY ON WEST AFRICAN TROPICAL ORCHIDS. 135 
apice maximo vesicato (columna nana, anthera truncata, polliniis cau- 
diculisque A. pellucidi). 
* Plant of small growth. Flowers pale yellow. Assaba.” (1839) 
Barter. 
Flowers very fleshy. The column is short and square, like that 
of A. eburneum; but the pollen-masses and caudicles are those 
of A. pellucidum. 
5. A. TRIDENS; subacaulis, foliis lineari-lanceolatis obtusis apice obli- 
quis, scapo ascendente capillari distanter vaginato, racemo 3-7-floro 
erecto, bracteis membranaceis cucullatis, sepalis acutis dorsali recurvo, 
petalis ovatis acuminatis, labello concavo tripartito laciniis filiformibus, 
caleare pendulo apice vesicato. 
* Epiphyte. Fernando Po, 4000 feet, December 1860.” (646) Mann. 
A small species, with the aspect of a lax-flowered Bolbophyll. 
Caudicles 2, cuneate, downy. Near 4. vesicatum. 
6. A. vAGANS; foliis oblongo-lanceolatis setaceo-apiculatis, racemis 
gracilibus multifloris bracteis obsoletis, floribus carnosis, sepalis petalis 
labelloque conformibus oblongis obtusis, calcare clavato incurvo labello 
longiore (caudicula lineari didyma). 
: * Flowers yellow, insignificant. Resembles a gigantic Vanda, and covers 
many of the small islets near the shore. Prince’s Island.” (1988) 
Barter. 
Leaves 8 inches long, 12 broad, not very thick. Racemes 
drooping. The flowers are the size of those of A. vesicatum, and 
very fleshy. 
/. À. PERTUSUM, Lindl. in Comp. Bot. Mag. ii. 205. 
* Flowers white. Brass." (1826) Barter.—R. Nun. (—) Mann. 
The lip of this species varies in being rounded and nearly entire 
as here, or somewhat acuminate as in the plant first described by 
me, or truncate and 3-toothed as in what I wrongly distinguished 
under the name of A. Pescatoreanum (Journ. of Hort. Soc. iv. 
p.263). In the latter plant the caudicles were certainly not cup- 
shaped; and therefore I hesitate to adopt Prof. Reichenbach’s 
genus Listrostachys. If Angrecum is to be broken up, which 
seems to me quite unadvisable, the structure of the pollen-appa- 
ratus must be more exactly ascertained than is possible in dried 
specimens. 
8. A. Monopon, Lindl. in Paxton's Flower Garden, ii. p. 102. no. 373. 
ic. xyl. 187. 
** Flowers pale yellow, insignificant. Forests between Otta aud Abbeo- 
kuta, 1859.” (3352) Barter. 
