188 
longus. Fructus ovoideus 3 mm. longus, 2 mm, latus, immaturus, 
costis inconspicuis. Thestum Welwitschiit, Baum in Kunene-Zam- 
besi Expedition, p. 230, non Hiern, Welw. Cat. Afr. Pl. Pt. iv. 
38 
¢ Aneoua. By the river Chitanda, on sandy ground between quartz 
rocks, Baum, 
1110. Thesium tamariscinum, 4. W. Hill [Santalaceae] ; inter 
species involucro bracteolarum instructas ramulis tamarisciformibus 
tenuibus foliis reductis distincta. 
Suffrutex perennis (?), caules prostrati vel suberecti, 10-50 cm. 
longi, sulcati, multiramosi; rami glabri, flexuosi, tenues vel 
filiformes. Folia squamiformia, ovata, acuta, plus minusve | mm. 
longa, distantia. lores singuli, apices ramulorum breviorum 
foliosorum 0°5-3 mm. longorum dispositi; bracteolae  circiter 
0°75 mm. longae, ovatae, acutae vel acuminatae, involucrum parvum 
formantes. Perianthium 1°5 mm. longum, segmentis 1 mm. longis 
anguste ovatis cucullatis marginibus superne inflexis ad basin minute 
ciliolatis. Antherae filamentis aequilongae, 0°25 mm. longae. Stylus 
1 mm. longus ; stigmate capitato. Fructus globoso-ovoideus, circiter 
2 mm. longus, costis primariis et reticulationibus distinctis in- 
structus. 
NyasALAND. Between Kondowe and Karonga, 610-1830 m., 
Whyte ; Nyika plateau, 1830-2135 m., Whyte, 168. ; 
XXVIII—THE HONGKON G HERBARIUM. 
S. T. Dunn. 
The herbarium, library, and offices of the Botanical and Forestry 
Department of the Hongkong Government are contained in a 
charmingly situated building overlooking the Botanic Gardens and 
the harbour. The library and herbarium are accommodated in a 
fine room which occupies about half the ground floor, and is well 
lighted during the day by six large windows opening to the ground 
and by electric light at night. 
_ Owing to the expense and difficulty of preserving books and 
dried plants in that climate, the range of literature is confined to 
subjects absolutely necessary to the work of the department, and the 
plant collections represent only the flora of China and contiguous 
countries, and Such species as have been cultivated locally. As 
in other herbaria in the tropics, the two enemies, damp and insects, 
have to be combated without intermission, the former by artificial 
drying, the latter by poisoning the specimens with corrosive 
books are preserved from the attacks of cockroaches (which 
demolish the bindings of any not specially protected) by the 
application, every four or five years, of a special varnish. 
~ _work entailed in these operations is done by two Chinese 
herbarium assistants, whose sole duty it is to prepare and preserve 
