TaBULA 3066. 
PTEROGLOSSASPIS EUSTACHYA, Reichb. f. 
ORCHIDACEAE. ‘Tribus VANDEAE. 
P. eustachya, Reichb. f. Otia Bot. Hamb., p. 67; Rolfe in Dyer Fl. 
Trop. Afr. vol. 99; a P. Engleriano, Kraenzl., labello obtuso, 
disco 5—7-nervi differt. 
> 
linearia, subacuta, plicato-venosa, 45-60 cm. longa, 1-1-5 cm. lata, 
basi angusta, vaginis tubulosis imbricatis obtecta. Scapi erecti, 
circiter 75 cm. longi, vaginis lanceolatis numerosis imbricatis vestiti ; 
racemi oblongi, circiter 5 cm. longi, multi ori. Bracteae lanceolatae 
vel lineari-lanceolatae, acuminatae, 13-2 cm. longae. Pedicelli 
6-8 mm. longi. Flores mediocres. Sepala et petala patentia, elliptico- 
oblonga, subobtusa, undulata, circiter 12 cm. longa. Labellum 
patens, trilobum, ecalcaratum ; lobi laterales divergentes, oblique 
elliptici, obtusi, 5-6 mm. longi ; lobus intermedius ovato-ellipticus, 
obtusus, 8-9 mm. longus; discus incrassatus, tuberculorum seriebus 
5-7 instructus. Columna lata, 4 mm. longa, apoda. <Anthera 1- 
locularis; pollinia 2, subglobosa, anthera dehiscente stipiti brevi 
affixa ; glandula squamiformis. 
East Tropica Arrica: Tigre or Begemder, Schimper, 1235. 
although so widely separated geographically no structural difference 
can be found. More recently a sixth species, P. ecristata, Rolfe, a 
native of Florida, has been added, this being a plant that has occupied 
i ition i i but which 
agrees with the others named both in habit and structure. The genus 
has thus a somewhat anomalous distribution —R. A. RoLFE. 
Fic. 1, flower, with sepals and petals removed; 2, column; 3, anther case; 
4, pollinia, with stipes and gland. All enlarged. 
