466 NEOTTEJE— SPIRANTHIDZE. 
5. Sprrantues congesta. Lindl. in Bot. Reg. 823. cum char. 
S. foliis radicalibus caulinisque lanceolatis, scapo bivaginato, spicá pauci- 
flora conicà puberulà, bracteis ovatis setaceo-acuminatis floribus bre- 
vioribus, labello oblongo basi contracto subauriculato apice brevi ro- 
tundato concavo disco pubescente margine plano : callis obsoletis. 
Hab in Sibiria. (hab. s. sp. comm. cel. Prescott ex hb. Heumann.) 
I should have referred this plant to Sp. australis if I did not attach great 
importance to the two calli at the base of the lip and the form of that 
organ, as marks of specific distinction ; here the calli, instead of being 
large conspicuous tubercles, are narrow indistinct lines, and the lip is by 
no means crisp at the apex. ‘The very short conical inflorescence, not 
exceeding an inch in length, seems also to be a further point of difference. 
I only know the species by two good specimens given me by the late Mr. 
Prescott with a label marked ** Neottia— e Sibiria, herb .Heumann." 
6. SPIRANTUES tenuis. 
S. foliis omnibus radicalibus lineari-lanceolatis coriaceis patulis, scapo erecto 
gracili glabro 3-vaginato, spicA tenui multiflora ovariisque pubescentibus, 
bracteis ovatis acuminatis floribus brevioribus, sepalis petalisque lineari- 
bus acutis crystallino-papulosis, labello oblongo apice rotundato crispo 
pubescente : callis clavatis liberis. 
Hab. in Guayand gallicd, Martin. (hab. s. sp. comm. cel. N. B. Ward.) 
A very slender plant, a span in height, with the appearance of S. australis. 
Its leaves appear to be much thicker in texture than is usual in the genus. 
7. SPIRANTHES ovalis. 
S. glaberrima, foliis radicalibus et caulinis lineari-ensiformibus acutis, spicà 
ovali densà multiflorà, bracteis ovatis acutis, sepalis petalisque lineari- 
bus obtusis, labello oblongo membranaceo apice recurvo crispo ; callis 
elongatis falcatis sagittam referentibus. 
Hab. in Texas, Drummond. (exam. s. sp. in herb. Hooker.) 
A plant from 6 to 9 inches high. Spike like that of S. odorata, but 
much smaller, and the flowers not larger tham those of S. gracilis. Avery 
distinct and apparently rare plaut ; for it seems that Mr Drummond found 
only three specimens, all preserved in Hooker's Herbarium. 
8. SrrnANTHES graminea. Lindl. in Benth. Pl. Hartweg, p. 25. no. 224. 
S. foliis radicalibus caulinisque lato-linearibus acutis basi angustatis, 
scapo vaginato apice tomentoso, spicA ovali-lanceolatà dens& multiflorà, 
bracteis ovatis acuminatis floribus aqualibus, sepalis pubescentibus 
petalisque linearibus obtusis, labello ovato membranaceo glabro apice 
crispo rotundato; callis subrotundis adnatis. 
Hab. in Mezico, in uliginosis Lagos, Hartweg. (hab. s. sp.) 
The nearest affinity of this species is with Sp. ovalis, from which it 
differs, not only in the characters above given, but in its greater stature, 
(my specimen is nearly 14 foot high) narrow leaves, and much more 
simply twisted spike, which in S. ovalis seems to have several spires à$ 
in S. odorata and its allies. 
