Chromosome Numbers in Characeae — H otchkiss 
33 
Rd., c 2 mi. S of Nakama Rd., probably c. 5 mi. 
S of Labasa, Vanua Levu, Fiji. (CYT Fiji-17.) 
11. Nitella pseudoflabellata A. Br. em., diffuse 
form. 
R. D. Wood & Vakuru Waibuta 61-6-29-8. 
June 29, 1961. In c. 6" of clear water, muck bot- 
tom, pool in dry ricefield, W of Nakoroutari Rd., 
c. 2 mi. S of Nakama Rd., probably c. 5 mi. S of 
Labasa, Vanua Levu, Fiji. (CYT Fiji-18.) 
12. Nitella pseudoflabellata A. Br. em., var. ma- 
thuata (T.F.A.) R.D.W. 
R. D. Wood & Vakuru Waibuta 61-6-30-5. 
June 30, 1961. Abundant in c. V' of clear water, 
sandy mud, overflow stream from pool in creek 
at place known as "Vuniwesi” in valley c. Va way 
around S side of island from NE end, Mathuata- 
i-wai Island, Vanua Levu, Fiji. (CYT Fiji-20X.) 
13. Nitella pseudoflabellata (duplicate of CYT 
Fiji-20X. ) 
SAMOA 
1. Nitella furcata (Roxb. ex Bruz. ) A g. var. sie- 
beri (A. Br.) R. D. W. 
R. D. Wood, Eel Tia’i & Esekia Sei’a 61-8- 
1-1. August 1, 1961. (CYT Samoa- 1.) 
CHROMOSOME NUMBERS 
The chromosome counts together with the 
collection numbers from this study are listed in 
Table 1 in the same sequence followed in listing 
the collection data. The numbers are gametic 
numbers taken from mitoses in the antheridial 
filaments prior to formation of the sperm. Illus- 
trations of the chromosomes of each species are 
shown in Figures 1 and 2. 
DISCUSSION AND CONCLUSIONS 
As is to be expected some of the chromosome 
numbers recorded here represent unreported spe- 
cies, while others either confirm previous counts 
or are at variance with those of previously pub- 
lished numbers. There is a total of five new 
counts. 
In the revision of Wood ( 1962^) many well- 
known species have been reduced to lower taxa. 
Notes connecting the revision names with the 
older usage are provided in the following discus- 
sion of individual species and collections. 
TABLE 1 
Chromosome Numbers in Charophytes from the South Pacific 
(By A. and D. Hotchkiss) 
SPECIES {sensu Wood, 1962a) 
n 
COLLECTION NUMBERS 
FIGURE 
NEW CALEDONIA 
1. Chara corallina 
14 
61-6-20-8 (CYT NC-5) 
la 
2. Lamprothamnium succinctum 
42 
61-6-20-1 (CYTNC-1) 
le 
3. L. succinctum 
42 
61-6-20-4 (CYT NC-2) 
U 
4. Nitella hyalin a 
18 
61-6-20-6 (CYT NC-3) 
If 
FIJI 
1. Chara corallina 
14 
61-6-29-6 (CYT Fiji-17) * 
lb 
2. C. corallina 
14 
61-7-1-1 (CYT Fiji-20) 
1 c 
3. C. corallina 
14 
61-6-29-1 (CYT Fiji-16) 
Id 
4. C. fibrosa 
28 
61-6-9-1 (CYT Fiji-1) 
u 
5. C. fibrosa 
28 
61-6-28-1 (CYT Fiji-15) 
1 h, i 
6. Nitella acuminata 
18 
61-6-25-1 (CYT Fiji-10) 
2a, b 
7. N. acuminata 
18 
61-6-26-3 (CYT Fiji-14) 
2c 
8. N. pseudoflabellata 
18 
61-6-13-1 (CYT Fiji-2) 
2d, e 
9. N. pseudoflabellata 
18 
61-6-25-6 (CYT Fiji-11) 
2 f,g 
10. N. pseudoflabellata 
18 
61-6-29-6 (CYT Fiji-17) * 
2b 
11. N. pseudoflabellata 
18 
61-6-29-8 (CYT Fiji-18) 
2 i 
12. N. pseudoflabellata 
18 
61-6-30-5 (CYT Fiji-20X) 
2 j 
13- N. pseudoflabellata 
18 
61-6-30-5 (CYT Fiji-20X duplicate) 
SAMOA 
1 . Nitella furcata 
18 
61-8-1-1 (CYT Samoa-1) 
Ik 
A mixed collection. 
