JAN. 1898. FLORA OF YUCATAN MILLSPAUGH. 403 



Serjania adiantoides Radlk. sp. nov. Bui. 



Fructu et habitu in Sect. xii. (Synococcus) affinis Serjaniae 

 orbicular! Radlk., insignis caulibus subherbaceis in angulis 

 pilis patentibus hirsutis, foliis sub-bipinnatis 4-jugis, jugo infimo 

 utrinque 5-foliato pinnato, sequenti ternato, reliquis simplicibus, 

 floribus in thyrsis bicirrosis ob rhachim abbreviatam subumbel- 

 latim confertis. (Habitu quo dammodo in mentem revocat Paul- 

 liniam thalictrifoliam Juss.). 



Yucatan: Dr. G. F. Gaumer n. 1114 (Buena Vista Xbac, m. 

 Sept. 1895, alab. et fruct. ; stirps rara, ad altitudinem " 10 ped." 

 scandens. 



SERJANIA ATROLINEATA Sauv. & Wr. Fl. Cuba, 24. 



Serjania Scatans Radlk. Monogr. Serj. 213., see Radlk. Serj. 

 SuppL, 1886:116. This replaces the Seriana scatans (Radlk) on 

 p. 33 of these contributions. 



Serjania goniocarpa Radlk. Serj. Monogr. 309. 



"Vine 60 feet, abundant in forest and brush lands about 

 * Izamal where it flowers in September" (973). 



SERJANIA PLICATA Radlk. Monogr. Serj. 167. 



Not Seriania plicata (Radlk.) as listed on p. 33 of these con- 

 tributions. 



Talisia olivaeformis (Kth.) Radlk., in Sitz. K. bayer. Acad., viii. 

 342. Guayo. Uayum. 



Melicocca olivaeformis Kunth. "Tree 60 feet high, common in 

 the forests of the peninsula, and cultivated in the villages. Feb- 

 ruary to April" (406). 



Thouinia paucidentata Radlk. sp. nov. 



Arbor " 30 pedalis, vulgaris " (Gaumer) ; folia ternata (petiolo 2 

 cm. longo adjecto 6-7 cm. longo) ; foliola lanceolata, in acumen 

 obtusum terminata, supra medium remote obtuso-dentata, 

 praeter nervorum axillas subtus barbatas glabra, impunctata, 

 epiderme mucigera ; thyrsi axillares, racemiformes, eramosi, 

 breves, stricti, puberuli ; flores in axillis bractearum per brevium 

 plerumque bini, pedicellati, puberuli. (Fructus non suppete- 

 bant.) 



Yucatan: Dr. G. F. Gaumer n. 865! (m. Aug. -Sept. 1895, flor.) 



Urvillea ulmacea genuina Radlk. 



Urvillea ulmacea Kunth, forma i genuina Radlk., in Sitz. K. 

 bayer. Acad., viii. (1878): 263, 264; et in Fl. Braz. Fasc. 122 

 (1897): 423. 



"Vine 20 feet, abundant in brush lands about Izamal, Janu- 

 ary to July 481." 



(Through an error in the printer's make-up of p. 307, Contri- 

 bution ii., this species is included under Vitaceae instead of pre- 

 ceding that order at the head of the page.) 



