1922] 



PFEIFFER — MONOGRAPH OF THE ISOETACEAE 



211 



Specimens examined: 

 Africa: Cape of Good Hope, Lehman (Gray Herb, and Mo. Bot. 



Gard. Herb.). 



Gray Herb, collections shows megaspores 570-600 \x in diam- 

 eter, minutely roughened on the three upper faces, and on the 

 fourth, showing short serpentine ridges. The vegetative charac- 

 ters coincide well with Baker's form; the number of leaves is 11, 

 they are fine and long (31-32 cm.), and bear oblong sporangia 

 (3-5 mm. long), with no velum. 



It seems as if Rehmann might conceivably be a misprint of 

 Lehman. 



Mo. Bot. Gard. Herb, specimen has 10 very slender leaves, 

 30-35 cm. long, with fairly prominent basal sheath; spores of 

 same character as above but as low as 480 \\ ; velum very narrow. 



64. 1, neoguineensis Baker in Sadebeck, Engl, and Prantl, Nat. 

 Pflanzenfam. I 4 : 776. 1901. 



Placed with /. Mulleri A. Br. and I. Kirkii A. Br., under divi- 

 sion with indusium complete, with more or less numerous sto- 

 mata; megaspores gray or light gray, warty. 



List of Exsiccatae Cited 



The distribution numbers are printed in italic. Collections 

 distributed without numbers are indicated by a dash. The num- 

 bers in parentheses indicate the species numbers in the present 

 revision. 





Allard 

 Allen - 



Anderssen 



Andrews 



(51). 



(42); 



(50); 



(55). 



(40). 

 (48a). 

 Archer — (23). 



Areschoug — (51). 

 Arrhenius — (40). 



Arthur, Bailey, Holway B418, B87 (42). 

 Arsme 3653 (37). 



Ashe 1092, 812. — (58a). 



Aflcherson — (7); — (16); — 



(51); 



- (62). 

 Ascherson & Beinhardt 



(25a); 



(62) 



(16); 



Austin 3 (58). 



Balansa 1560 (62); 1327 (25a); 849 

 (25) j — (10). 



Balfour — (51). 

 Ball — (25); — 

 Ballard — (6). 



Barter 394 (42). 

 Barbour — (58). 



— (5-)). 



(62). 



(58). 



Bard. 11 — 



Barsali 401 (62). 



Bat ley — (42). 



Beardslee & Kofoid 

 Bergi sen — (51). 



Bessey 1 (52); 2 (35). 



Best — (48a). 

 Best & Crawford — (48a). 

 Billot — (51); I (62). 



Biltmore Herb. 4S64, 64b 



(58). 

 - (42); 



56641 



Bishop 



(58); 



( 29 ) ; 

 (42a). 



