204 SPECIES BLANCOANAE 
some other form. A figure of the fruit, from the same plant 
as the leaf-specimens distributed herewith, is given by Wester, 
Citriculture in the Philippines, Bull. Bur. Agr. (Philip.) 27 
(1913), pl. 15, but this figure does not show the large nipple 
at the base of the fruit mentioned by Blanco. 
Illustrative specimen from Lamao, Bataan Province, Luzon, 
November, 1914, comm. P. J. Wester (Merrill: Species Blanco- 
anae No. 207). 
CITRUS AURANTIUM Linn.; Blanco Fl. Filip. (1837) 609; ed. 2 (1845) - 
425; ed. 3, 2 (1879) 408. 
This was reduced by Fernandez-Villar to Citrus aurantium 
Linn. var. bigrardia Hook. f. While manifestly not this variety, 
it is still apparently a form of the Linnean species. The fruit 
is nearly globose, pale-yellow or lemon-yellow, tight-skinned, 
usually very acid. This form is found only in cultivation and 
is abundant in the Manila markets in season. 
Illustrative specimen from Balayan, Batangas Province, Lu- 
zon, September, 1914, there known as cahel (Merrill: Species 
Blancoanae No. 782). 
CITRUS MITIS Blanco FI. Filip. (1837) 610 (sp. nov.) ; ed. 2 (1845) 426; 
ed. 3, 2 (1879) 409, t. 185. 
This species was reduced by F.-Villar to Citrus medica Linn. 
var. limetta Hook. f. which is certainly incorrect. Citrus mitis 
Blanco is apparently a valid species, characterized by its solitary 
flowers. It is commonly known as calamansi and calamondin, 
and is found only in cultivation. 
Illustrative specimen from Balayan, Batangas Province, Lu- 
zon, August, 1914, there known as calamondin (Merrill: Species 
Blancoanae No. 102). 
p Citrus torosa Blanco Fl. Filip. (1837) 609 (sp. nov.) ; ed. 2 (1845) 425; ed. 
3, 2 (1879) 407, t. 408=CITRUS HYSTRIX DC., var. 
This species is apparently only a form of the variable Citrus 
hystrix DC., and is characterized by its coarsely warted or ver- 
rucose fruits. It is apparently a sylvan species, of rather wide 
distribution in the Philippines, and is widely known among the 
Tagalogs as colobot. 
Illustrative specimen from Batangas Province, Luzon, August, 
1914, there known as colobot (Merrill: Species Blancoanae 
No. 46). 
Citrus decumana Linn.; Blanco Fl. Filip. (1837) 608; ed. 2 (1845) 424; 
ed. 8, 2 (1879) 406, t. 304—=CITRUS MAXIMA (Burm, f.) Merr. 
Interpret. Herb. Amb. (1917) 296. 
