204 



The Wateri.ilies. 



Measurements of Petals (in centimeters). 



Series. 



Outermost. 



Second . 



Third. 



Fourth , 



Fifth . 



Flowbr 1. 



Lenvrth. 



5-8 

 6 



5-3 

 5-1 

 5-3 

 5-2 



4 95 

 4-95 

 4.8 



4-7 



Width. 



2.4 



2-4 



2.7 



2.2 

 2.1 

 2.2 



2.1 



2.4 



2.1 

 2.2 

 1.9 



Flower ::. 



Length. 



6.5 

 6.4 

 6.5 

 6.4 



6.2 



Width. 



o 2.7 

 r2.7 

 /2.7 

 i 2.7 



2.7 



Flower :i. 



Length. 



5 

 4-95 



4-5 

 '4.5 



<M-3 

 M-I5 



o 4.0 

 i 3-7 



3-5 



Width. 



1.9 

 1.9 



1.9 



1-75 



1.9 

 i-4 



i-4 



o outermost. r = right. I = left. i= innermost. 



Notes. A very interesting species. The tubers may be dried off, but keep better 

 in continuous vegetation, which may be arrested by small pots during the winter. In 

 its native haunts it probably flowers all the year. 



The outermost staminodes sometimes have two apices, and resemble a fusion of 

 two such organs. The inner stamens also may be found with two or three anthers, 

 either on the same or on separate connectives. 



Var. goudotiana (Planchon) Caspary. 



Peduncle bearing a ring of long hairs at top. 



Nymphaea Goudotiana, Planchon 1853 a and b, fid. original specimen in hb. Paris. 

 N. amazonum forma a Goudotiana, Caspary 1878. 



Geographic Distribution. New Granada (Llanos D'llbog), coll. Holton, No. 

 689 in hb. Boissier. Province of Piauhy, Brazil. 



Notes. Sagot (1881) records a "forma submersa," with submerged leaves, but 

 without further description, from a specimen coll. Karouany, 1855, No. 25 of hb. 

 Sagot, in French Guiana; now in hb. Kew. 



Nymphaea rudgeana, G. F. W. Meyer. (Plate XX.) 



Number of floral parts 80 to 127. Sepals ovate-oblong. Petals of the third 

 whorl separated from the lower ones by a wide interval. Stamens 43 to 83. Pollen 

 0.0324 to 0.0362 mm. in diameter. Carpels 11 to 24. Fruit bearing the deeply fun- 

 nel-shaped stigma, surrounded by the sepals, petals and stamens, all of which are per- 



