DR. G. BIRDWOOD ON THE GENUS BOSWELLIA. 145 
represented in my plate of B. Bhau-Dajiana showed at that time only the serrate and 
pubescent variety of leaf; but I have figured beside it two other varieties of leaves which 
I subsequently found either on this same plant, or other plants of the same species growing 
near it. It would be more satisfactory if I were less uncertain on this point, especially as 
my ground for including the two kinds of * Mohr-Madow” leaves sent to me by Playfair 
under the species B. Carterii is the all but absolute certainty that analogous varieties of 
leaf are produced by B. Bhau-Dajiana or “Mohr Add." It must be distinctly borne in 
mind, therefore, that with the leaves no flowers have ever been seen of the variety, 
either of * Mohr Madow” or “Mohr Add,” in which the leaflets are more or less entire, and 
hoary below, and glabrous above, and that it may be an error to include them as varieties 
respectively of B. Carterii and B. Bhau-Dajiana. But analogous variations of leaf ar 
conclusively authenticated in the case of B. thurifera, infrà. 5 
The serrate downy variety of leaflet in B. Bhau-Dajiana is very like the young leaflets 
of B. Carterii; but the leaflets in the latter, young and old, are always more or less 
undulate, whereas in the former they are always quite flat. In the former, also, the 
leaflets are narrow and more lanceolate, in the latter broad and more oval; and in the 
mass of foliage these differences make a distinction. 
B. Carterii [i. e. “Mohr Madow "] and B. Bhau-Dajiana |“ Mohr Add”) yield the 
bulk of the olibanum exported from the Soumali country under the name of “ Laban- 
Sheheri,” * possibly,” writes Playfair, “ because it is principally taken to Sheherr and 
Makalla markets.” Vaughan! says “ Luban Shaharee” is the term given to Arabian 
frankincense, which is also yielded by B. Carterii [i. e. “ Maghrayt d'sheehaz"]. Both 
the glabrous-above hoary-beneath variety (?) of B. Carterii | ?. e. “ Mohr Madow ”] and of 
B. Bhau-Dajiana [“ Mohr Add ”] yield, according to Playfair, the * Luban Bedowi ” of 
the Soumalis, which is also mentioned by Cruttenden, but nowhere by Vaughan. 
Subsectio 8. Racemi dios 
3. BoswELLIA PAPYRIFERA, Richard, Tent. Flor. Abyss., Voyage en Abyssinie par Lefebre, 
&c., iv. p. 140, tab. 33. 
Diasnosıs.—Foliola 4-10-juga, pubescentia. Inflorescentia racemosa, racemis paniculatis. 
Amyris papyrifera, Delile, Cent. Plant. d'Afrique; Cailliaud, Voyage à Méroé, ii. p. 298. 
Plösslea floribunda, Endlicher, Nov. Stirp. Mus. Vind. Dec. no. 47, tab. 119, 120. 
Bruce, Travels, vii. p. 334, tab. 48, “ Angouah." 
Habitat in Senaar et Soudan, et Gondar, in convallibus fluviorum Taccaze et Mareb, “ Angouah ” incola- 
rum, Bruce; “Kafal ias ? et “Loban-adam-coulan,” Delile; “ Makker,"[Dillon et Schimper 
apud Richard. 
Descriptio.—Arbor magna; foliola lanceolata, 
poll.; calyx longe dentatus; corolla reflexa ; petala longa, 
C . 
M tree named * Angouah ” in Bruce's * Travels,’ he says, “The Abys- 
sinians believe it to be that which bears the true frankincense ; in reality it produces a 
acuta, dentata, longa 1 poll. ad 2 et 3 
reflexa ; pistillus basi contra- 
à Pharm. Journ. xii. sup. cit. i 
v 2 
