234 
XXIX.—NEW ORCHIDS: DECADE XLVI. 
451. Pleurothallis (§ Macrophyllae Racemosae) grandis, 
Rolfe; affinis P. lamellariis, Lindl., sed scapis longioribus 
ey et floribus duplo ma ajoribus facile distinguenda. 
Lerba grap tenes festa 50 cm. alta. Caules elongati, 
eylindnci, 30-40 cm. longi, vaginis paucis tubulosis carinatis 7-9 
em, longis obteti. F olaa sessilia, subcordata-ovata, subobtusa, 
coriacea, 17-22 ¢ . longa, 9-17 cm. lata. Spatha lanceolata-ob- 
ga 
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latae, conduplicato-concavae, circiter 1 em. longae. Pedicella 
arcuati, verruculosi, 15cm. longi. Flores secundi, patentes, pro 
renere m brunneo-suffusi. As gebeht posticum suberectum, 
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ee 
vi 
vum, margine revolutum ; pres jataralin alte connata, oblonga, 
A aE ag 3 em. longa, 1-2 m. lata, apice- biloba, lobis subob- 
tusis. Petala parallela, Spaces obtusa, coriacea, 1 cm. longa, 
supra medium valde incurva. Labellum ovato-oblongum, obtu- 
verruculosum, apice abrupte incurvum; discus carnosus. 
Colunna clavata, 5 mm. longa. 
Cenrrat America. Costa Rica; near Cachi, C. H. Lankester, 3. 
rge and very distinct ete which flowered at Kew in 
September, 1917, and in August, 1918. The flowers are borne 
in a one-sided raceme, the grou und colour being green, more or 
less aiffeméd and striped on the sepals with brownish red. 
452. Bulbophyllum robustum, Rolfe in Bot. Mag. sub. 
8000, sine descriptione; affine B. crenulato, Rolfe, sed ‘habita 
robustiore, ot Se lateralibus angustioribus et ovarii carinis 
integris differt 
a repens, vali ium, vaginis ovatis ancipitibus acutis 
imbricatis obtecta. Pseudobulbi whi acutanguli, oblongi 
vel ovoideo-oblongi, 4-6 cm. lon 15-2 cm. weal diphylh. 
Folia elliptico- oblonga, subobtusa, ‘coriacea, 12- Tine 
-3 cm. lata. Scapi suberecti, 15-25 ¢ m. longi, vaginis = babialoee: 
spathaceis obtecti; spica patens vel ‘ekeve, 0 crassa, 
densiflora, 6-8 onga, circiter 1°5 em. lata, rachi alveolata 
Bracteae late ovatae, subobtusae, ongae. Pedicelli 
rassissimi, 3 mm. longi. Flores parvi, nosi, 4-5 m 
car longi. 
Sepalum posticum inflexum, ellipticum, obtusum ; peasy lateralia 
connata; ‘limbus late ova 
crenulatus. 
onga. Labellu um. orbiculare, emaiepinatam, crassum, 25 
1 Des — brevissima ; alae subulato- 
psec subacutae, 0°5 | 
scar. Central ai : : 
sy Bron 284 = ae, without exact locality, Rev 
= £ thes species, received from the Royal Botanic 
- Glens stig Oe without a name, flowered in the Kew 
co ection § in May, 1917. The sepals are green, with many more 
