1900 SUPPLEMENT—RECENT INTRODUCTIONS, 
Blechnum—continued. 
Fic. 176. BLECHNUM LONGIFOLIUM. 
continuous line near the midrib, Khasia Hills. Greenhouse. 
Syn. Blechnidium melanopus. 
B. nitidum. This useful stove Fern is well shown at Fig. 177. 
Se Y 
= SEES 
a 
Fig. 177. BLECHNUM NITIDUM. 
B. punctulatum (slightly dotted). A synonym of Lomaria 
punctulata. 
B. rugosum (wrinkled). sti. 3in. to 6in. long, densely glandular- 
iry above, as is therachis. fronds linear-lanceolate, acuminate, 
about lft. long, the surface wrinkled, Sauter tary pinnee 
with a stalk-like base below, confluent above, oblong, blunt or 
sometimes abruptly acute, falcately curved. soi linear, medial, 
extending from the base nearly to the apex of the pinne. 1884. 
Greenhouse. 
B. Spicant (spiked). A synonym of Lomaria Spicant. 
B. triangulare (triangular). A synonym of B. unilaterale. 
Vol. V. 
&c. 153 
Blechnum—continued. 
B. volubile (twining). sti. climbing. fronds bipinnate; pinne 
disposed in distant, Gunes pairs; pinnules coriaceous, usually 
four to six on each side, stalked, narrow-lanceolate, 6in. to 12in. 
long; 3in. to 2in. broad, with an undulated, cartilaginous 
border. involucre broad, membranous, at first wrapped over the 
fruit, afterwards breaking up into short pieces. Tropical 
America Stove. 
BLECHUM. About four species, natives of the West 
Indies, Central America, Colombia, and the Philippines, are 
included in this genus. Flowers rather small, solitary or 
densely spicate; calyx segments linear-subulate; corolla 
tube often shortly exserted, the limb spreading, with five 
rounded, twisted lobes; stamens four, didynamous. 
Leaves entire or repand-toothed. 
BLEEDING. This is most frequently met with in 
connection with Grape Vines. It is chiefly caused by late 
pruning, or by an excess of vigour, oftener, however, by the 
former. To prevent it, pruning should be done as soon as 
possible after the foliage has fallen, and the Vines given 
a rest by keeping them as cool as posstble for a few weeks. 
Other plants will also Bleed through pruning at unseason- 
able times. In the case of ornamental trees it is advisable 
to cover the wound with coal-tar or grafting-wax. 
Another form of sap extrayasation takes the form of 
small, transparent globules on the young growing shoots 
of Vines. It is not injurious to the health of the plants. 
It might possibly be injurions if the plant could not thus 
find an outlet for the excess of sap. 
BLEEKERIA. A synonym of QOchrosia (which 
see). 
BLENNOCAMPA PUSILLA. 
flies. 
BLEPHARIS. Including Acanthodiwm. About a 
score species, natives of tropical and South Africa and the 
East Indies, are included in this genus. Leaves opposite, 
membranous or rigid. 
BLETIA. Syns. Gyas, Thiebawtia. Including 
Bletilla. About a score. species haye been referred to 
this genus; they are mostly natives of tropical America, 
with one Chinese and Japanese. To those described on 
p- 196, Vol. I.. the following should be added. See also 
Arundina, Brassavola, and Calanthe, for a few 
species formerly classed hereunder. 
B. Godseffiana (Godseff’s). This is probably a variety of 
B. verecunda, from which it ppvears to differ only in having 
smaller flowers. Brazil (?), 1893. 
B. graminifolium (Grass-leaved). A synonym of Arundina 
bambusefolia. . 
B. hyacinthina albo-striata (white-striated). A pretty 
variety, having all the nerves of the leaves white. It will 
thrive in the cool house. Flowers of the typical plant are shown 
in Fig. 178. . 
B. pallida (pale). A synonym of B. /lorida. 
B. reflexa (reflexed). jl. purple, 14in. long, having the lip veined 
with brown and the keels white. 7. Grass-like, din. broad. 
h. lit. Mexico, 1895. 
B. Tankervilliz (Mrs. Tankerville's). 
grandifolius. 
B. Thomsoniana (Thomson's). A synonym of Schomburgkia 
Thomsoniana. 
B. Watsoniana (Watson's). #. about 2in. across, borne at the 
apex of a tall, slender spike; sepals and petals magenta ; lip 
three-lobed, varying from Dish parae to magenta, with a 
central white band and a golden disk. Pseudo-bulbs flattish, 
ridged, broad. 1894. A distinct species. 
B. Woodfordii (Woodford’s). A synonym of Phaius maculatus. 
BLETILLA. Included under Bletia (which see). 
BLIGHT. See Apple and Pear Blight. 
See Rose Saw- 
A synonym of Phaius 
BLISTER RUST. See Pine Bark Blister 
Rust. 
BLITUM. Included under Chenopodium (which 
see). 
x 
