4io 
HEMITEL I A 
Hemitelia Br. Cyatheaceae. About 20 sp. trop. and S. temp. Tree- 
ferns. 
Hemizonia DC. Compositae (v). 25 sp. west N. Am. 
Hepatica Dill. = Anemone Linn. 
Heptapleurum Gaertn. Araliaceae. About 50 sp. trop. Afr., As., 
Austr. Included in Schefflera in Nat . PJi . 
Heracleum Linn. Umbelliferae (7). 70 sp. N. temp., and trop. Mts. 
(H. Sphondylium L., cow-parsnip, in Brit.). 
Herbertia Sweet ( Alophia Herb.). Iridaceae (11). 3 sp. trop. and 
sub-trop. Am. 
Heritiera (Dryand.) Ait. Sterculiaceae. 4 sp. trop. Old World, on sea 
coasts. 
Hermannia Linn. (excl. Mahtrnia Linn.). Sterculiaceae. 120 sp. trop. 
and sub-trop. , chiefly Afr. 
Herminiera Guill. et Perr. Leguminosae (ill. 7). 1 sp. trop. Afr., 
H . elaphroxylon G. et P. The wood is as light as elder pith and is 
used for floats, canoes, &c. This phenomenon seems to be related to 
the development of aerenchyma seen in other marsh plants (cf. Lyco- 
pus, Jussieua, &c., and see p. 161). H. is united to Aeschynomene 
in Nat. PJI. 
Herminium Linn. Orchidaceae (3). 4 sp. temp. Eur., As. [H. 
Monorchis R. Br., musk-orchis, in Brit.). Fir. like that of orchis, 
but smaller, and fertilised by small flies which get the pollinia stuck 
to their legs. 
Hemandia Plum, ex Linn. Plernandiaceae. 8 sp. trop. (Laurineae 
Benth.-Hooker). 
Hemandiaceae. Dicotyledons (Archichl. Ranales). 4 gen. with 24 sp. 
trop. Like Lauraceae, to which they are united by Benth.-Hooker 
and Warming, but with epigynous fir. Ovary inf., i-loc., with 1 
pendulous anatropous ovule. See Nat. PJI. for details. 
Herniaria (Tourn.) Linn. Caryophyllaceae (11. 4). 15 sp. Medit., 
Eur., S. Afr. (H. glabra L., rupture-wort, in S. W. England.) Fir. 
apetalous. 
Herpestis Gaertn. ( Bacopa Aubl.) Scrophulariaceae (11. 8). 50 sp. 
trop. and sub-trop., chiefly Am. 
Hesperantha Ker-Gawl. Iridaceae (ill). 20 sp. S. Afr. 
Hesperls Linn. Cruciferae (iv. 19). 24 sp. Eur., Medit.; (1 Brit.). 
Heteranthera Ruiz et Pav. Pontederiaceae. 10 sp. trop. and sub-trop. 
Am., Afr. Leaves of two types — linear submerged and orbicular 
floating. Some have cleistogamic firs. 
Heterocentron Hook, et Am. = Heeria Schlecht. 
Heteromerae (Benth.-Hooker). The 2nd series of Gamopetalae (p. 
r 34)- 
Heteropteris H. B. et K. Malpighiaceae (1). 90 sp. trop. Am., 1 in 
trop. Afr. Fruit a samara (cf. Acer, Banisteria). 
Heterotoma Zucc. Campanulaceae (ill). 4 sp. Mexico. 
