Fig. 
a new Pitcher-plant from British Guiana. 433 
racemosus, glaber. Pedicelli alterni, glabri, solitarii ad axillam bracteæ 
ovate complicate acuminatæ paralleli-venosæ glabre. Prope basin scapi 
folium nonnunquàm adest forma inter illas foliorum radicalium et brac- 
tearum feré media, nempé basi bracteis simile supra medium margini- 
bus connatis subamphoræ-forme. Flores nutantes, albi, v. pallidé rosei. 
Perigonii foliola expansa, ovato-lanceolata, acuminata, glabra, 15-16 lin. 
longa. Stamina glabra, filamentis basi crassioribus. Ovarium ovoideum, 
pubescens. Stylus glaber. | 
EXPLANATION OF TAB. XXIX. 
HELIAMPHORA NUTANS. 
1. The flower, with the perigon removed, showing the stamens. 
2. A single stamen, front view. 
3. The same, back view. 
4. Style and ovary. 
5. Transverse section of the ovary. 
6. Diagram of the arrangement of the floral parts. 
7. Seed. 
8. The same, with the testa removed. 
9. Longitudinal section of the same. : 
10. Portion of a young petiole, showing the inner surface of the natural 
size. a. Hairs of the orifice, highly magnified. b. Hairs of the bot- 
tom of the pitcher, magnified to the same degree. 
Nos. 1. to 9. are all more or less magnified, 
3. 2 
