50 
SOUTH AFRICAN SPECIES OF 
damp places near the Breederiver, Nov.) and Z. 116 (Groenepoint, 
Sep.). 
E. and Z. 1846 (in damp places on the fields near the Zwartkops 
River = Helophytum reflexum, E. et Z.) appears to be identical with Z. 
2513 (damp places in the dunes at the mouth of the Ourustriver near 
Gildenhuis, Aug.) and may also be distinct, but a decision can only be 
arrived at after examination of a large amount of live material. 
2. Crassula inanis, Thunb. in Prodr. (1794), 54; FI. Cap. ed. Schultes, 282. 
(Plate II, fig. 2.) 
Tillaea perfoliata, Linn. Syst. Yeg. xiv, 170 ; Linn. f. Suppl. 129. 
Helophytum inane, E. et Z. Enum. no. 1847, 289 (1837), et var. 
/3 latifolium, E. et Z., ibid. 
Annua aquatica glaberrima. Caulis debilis vel erectus teres, 
inferne simplex, apice parum ramosus ad nodos inferiores saepe 
radicans internodiis cavis elongatis albis. Folia quam internodia 
breviora rarius iis aequilonga vel longiora connata ovata vel ovato- 
lanceolata obtusa vel subacuta. Flores tetrameri ex axillis foliorum 
superior um cymoso-corymbosi bre viter pedicellati. Pedicelli capillares 
longitudine fioris. Calyx gamosepalus 4-dentatus, laciniis ovatis 
obtusiusculis virescentibus. Petala alba lanceolato-ovata obtusa quam 
calyx duplo longiora suberecta. Stamina quam petala breviora, 
filamentis subulatis, antheris ovatis. Ovaria 1-ovulata ovata stilis 
brevibus reclinatis. Squamae obcuneatae elongatae apice truncatae. 
Height usually 20 — 25 cm. Lower internodes often up to 5 cm. 
long, upper gradually smaller. Leaves usually about 1 cm. long, 
2 — 3 mm. broad. Petals about 2 mm. long. 
This species is almost restricted to the southern coast regions of 
South Africa. It appears to be rare in the S.W. coast region, but 
is fairly common from Uitenhage to Natal and extends to Lydenburg 
in the Transvaal. It is found from near sea-level to an altitude of 
1800 m. In the western parts it flowers in November and December, 
while in the eastern parts it flowers already in July. Like so many 
water-plants it varies considerably in its vegetative organs. Thus 
in specimens from Komgha (Flanagan, 1105) the leaves are only 
2 — 3 mm. long and are broadly ovate, but I have seen specimens from 
other parts with leaves up to 2 '5 cm. long. Near Grahamstown they 
vary between 4 and 13 mm. 
Klein Drakenstein, near the Bergriver and on the Zuurberg, 
Drege; Langekloof, George, E. and Z. 1847 (var. /3 latifolium, E. 
et Z.) ; Yanstaadens and Uitenhage, Z. 729, 2509; Grahamstown, 
Schonland, 409, Miss M. Daly and Miss M. Sole, 187 ; near Pirie, 
Kingwilliamstown, Sim, 1199, Rev. R. Godfrey, 99 ; Komgha, Flanagan, 
