X, C, 4 
Merrill: Studies on Philippine Anonaceae, I 
rather crowded, flattened, about 1.8 mm long, 1 mm wide, the filamentous 
part as long as the antheriferous part, the connectives broad, thin, not 
produced, not entirely concealing the cells. Carpels usually 8 to 12, 25 mm 
long, oblong, crowded, densely hirsute; ovule solitary, basal; style cylindric, 
glabrous, about 1 mm long, somewhat curved. 
ALPHONSEA Hooker f. & Thomson 
ALPHONSEA ARBOREA (Blanco) comb. nov. 
Macanea arborea Blanco FI. Filip. (1837) 431. 
Monodora myristica Blanco 1. c. ed. 2 (1845) 300, ed. 3, 2 (1878) 
193, non Dun. 
Monocarpia blancoi F.-Vill. Novis. App. (1880) 6. 
Alphonsea philippinensis Merr. in Govt. Lab. Publ. (Philip.) 35 
(1906) 9. 
Luzon, Province of Rizal, Bosoboso, For. Bur. 2010 Ahern's collector: 
Province of Laguna, Mount Maquiling, For. Bur. 20288 Villamil: Province 
of Tayabas, Merrill 1925, 1988, 2062, 2591, For Bur. 3215 Hugger: 
Province of Camarines, For. Bur. 10499 Curran. Mindoro, Bur. Sci. 939 
Mangubat. TlCAO, For. Bur. 1015 Clark. Masbate, Merrill 3075. Leyte, 
For. Bur. 12710 Rosenbluth. Cebu, For. Bur. 6439 Espinosa. Mindanao, 
District of Zamboanga, For. Bur. 22020 Villamil. 
Local names: sapiro (Cebu); lanutan (Leyte, Tayabas, Mindoro); 
calay (Zamboanga, Laguna); lanutan itum (Ticao) ; bolon (Camarines). 
Blanco’s Macanea arborea does not appear in Index Kewensis. In the 
second edition of the Flora de Filipinas he erroneously reduced it to the 
American Monodora myristica Dun. Monocarpia blancoi F.-Vill. is merely 
a new name for Blanco’s species accompanied by a description based on 
specimens from Luzon. Alphonsea philippinensis Merr. is certainly identi- 
cal with Macanea arborea Blanco, and Blanco’s specific name is accordingly 
here accepted. 
Blanco’s description is unmistakable and applies in all respects to the 
species as here interpreted. His material was from Luzon and Cebu; the 
native name calai cited by him is still in use for this species, and is ap- 
parently exclusively applied to it; the time of flowering agrees. Even if 
Blanco’s description were very poor, which it is not, the phrase describing 
the fruit would unmistakably locate the form: “La corteza exterior del fruto 
se parece enteramente al del llamado en Manila Mamei [Lucuma mamosa 
Gaertn.].’’ The fruits are very hard, woody, brown, rounded at the apex, 
up 9 cm long and 5 to 6 cm in diameter. 
F.-Villar placed the species in the genus Monocarpia, but saw no flowers. 
The stamens in our material are miliusioid and exclude the species from 
Miquel’s genus in which the connectives are produced and truncate. 
ALPHONSEA SE'SSI LI FLORA sp. nov. 
Frutex vel arbor parva, ramulis floribusque ferrugineo-pube- 
scentibus; foliis lanceolatis, in siccitate pallidis, chartaceis, 5 
ad 8 cm longis, acuminatis, basi acutis, nervis utrinque circiter 
11, tenuibus, indistinctis ; floribus axillaribus, solitariis, sessi- 
libus, sepalis petalisque extus ferrugineo-pubescentibus. 
A shrub or a small tree, the branches very slender, terete, 
