272 
Adenodiscus mexicanus, on Galeotti 4154 from Vera Cruz, and 
described it as having yellow flowers, eglandular petals, five 
antepetalous glands on the androgynophore, and leaves with 
glanduliferous basal serratures. These characters, which are 
inconsistent with Belotia, suggested to the writer that Adenodiscus 
mexicanus might be a species of Heliocarpus, in spite of the 
fact that the ovules were described as numerous; and a search 
in the Kew Herbarium resulted in the discovery of a duplicate of 
the type number, which agrees with Turczaninov’s description 
except that the ovules are only two in each loculus. It is a 
very distinct species of Heliocarpus, with leaves which are 
unusually glabrous for the genus, but have tufts of hairs in the 
axils of the veins on the lower surface. This character is men- — 
tioned by Turczaninov, and also by Hochreutiner, who re- 
described another duplicate of the type number as a supposed 
new species, Heliocarpus glabrescens.* It should now ae the 
name Heliocarpus mexicanus (Turcz.) Sprague, comb. n 
It may be useful to mention some of the chief shaadi 
which serve to distinguish the various species of Belotia. Perhaps 
the most important is the nature of the indumentum on the 
leaves, as is often the case in the T'iliaceae. In some species, 
such as B. mexicana, all the hairs are in one tier, whilst in others, 
such as B. Campbellii, there is. 2 lower tier of relatively small 
and crowded hairs, and an upper of larger and more distinct 
ones. The veinlets are finely but strongly reticulate on the 
upper surface in B. reticulata and, to a less extent, in B. grewi- 
aefolia an and B. Lessertiana. The shape vail direction ‘of the 
marginal teeth also afford useful characters. There is consider- 
able diversity in the inflorescence: B. panamensis is unique in 
its 1-3-flowered cymes; B. grewiaefolia has a small, relatively 
compact inflorescence; and B. tabascana is easily recognized by 
its small inflorescences in the axils of foliaceous bracts on 
axillary short-shoots. The size of the flowers and the general 
shape of the petals are relatively constant, but the apex of the 
S may vary in certain species, even in the same flower, 
some petals being distinctly bifid and others irregularly toothed 
or subentire. The shape and size of the capsule is of great 
importance. 
Belotia, A. Rich. in La Sagra, Hist. Ile Cuba, Bot. i. p. 207 
(1845), Atlas t. 21 (1853); Benth. in Benth. et Hook. f. Gen. Pl. 
i. p. 233 (1862) excl. syn. Adenodiscus, Turez.; K. Schum. in 
Engl. et Prantl., Nat. Pflanzenf. iii. 6, p. 28 (1890), excl. syn. 
Flores pen ntameri. Sepala exappendiculata. Petala ligularia 
vel oblongo-spathulata, apice plus minusve bifida vel dentata, 
basi intus area ciliata nectarifera instructa, caerulea vel violacea, 
rarius alba. Androgynophorum nudum, apice discum late ciliatum 
gerens. Stamina numerosa, libera; antherae pede rasicg 
Ovarium biloculare ; loculi pluriovulati ; ovula bise Capsula 
bilocularis, septo contrarie valde compressa, aneronrg Semina 
* Ann. Conserv. et Jard. Bot. Genéve, xviii.-xix. p. 122 (1914). 
