758 CONTRIBUTIONS FROM THE NATIONAL. HERBARIUM. 



DOUBTFUL SPECIES. 



WissADULA GLANDULosA Rose, Contr. U. S. Nat. Herb. 10: 123. 1906. Type 

 collected between Higuerillas and San Pablo, Queretaro. Probably a species 

 of Pseudabutilon. Type not seen. 



6. PSEUDABUTILON R. E. Fries, Svensk. Vet. Akad. Handl. 43*: 96. 1908. 



Reference : R. E. Fries, Svensk. Vet. Akad. Handl. 43^:96-108. 1908. 



Shrubs or herbs, with stellate pubescence ; flowers axillary or in terminal 

 spikes or panicles, ebracteolate ; ovules 3 ; carpels 5 to 11, usually apiculate 

 or rostrate, falsely 2-celled ; seeds 3. 



Carpels 10 or 11. 



Carpels conspicuously short-beaked 1. P. paniculatum. 



Carpels not beaked 2. P. scabrum. 



Carpels 5. 



Flowers in terminal spikelike panicles ; fruit 8 mm. or less in diameter. 



3. P. spicatum. 

 Flowers axillary or in loose panicles; fruit more than 10 mm. in diameter. 



Branches long-pilose and tomentose 4. P. pringlei. 



Branches stellate-tomentose but not pilose. 



Calyx in anthesis 10 mm. long 5. P. lozani. 



Calyx 6 mm. long or less 6. P. rosei. 



1. Pseudabutilon paniculatum (Rose) R. E. Fries, Svensk. Vet. Akad, Handl, 



43*: 104, 1908. 



Wissadula paniculata Rose, Contr. U. S. Nat. Herb. 5: 178. 1899. 



Sinaloa ; type from Imala. 



Slender shrub, 1.5 to 2.5 meters high; leaves broadly ovate-cordate, 9 cm. 

 long or less, cuspidate-acuminate, crenate-dentate, green, sparsely stellate-pu- 

 bescent; flowers paniculate; petals yellow, 1 to 1.8 cm. long; carpels 4 to 5 

 mm. long. 



2. Pseudabutilon scabrum (Presl) R. E. Fries, Svensk. Vet. Akad. Handl. 43*: 



103. 1908. 



Wissadula scahra Presl, Rel. Haenk. 2 : 117. 1836. 



Jalisco and probably elsewhere; type from some unknown locality. 



Shrub, 2 to 2.5 meters high ; leaves broadly cordate-ovate, 13 cm. long or 

 less, cuspidate-acuminate, dentate, green, thinly stellate-pubescent; flowers 

 paniculate; petals yellow, about 12 mm. long; carpels 6 to 7 mm. long. 



3. Pseudabutilon spicatum (H. B. K.) R. E. Fries, Svensk. Vet. Akad. Handl. 



43*: 98. 1908. 



Abtitilon spicatum H. B. K. Nov. Gen. & Sp. 5: 271. 1821. 



Wissadula spicata Presl, Rel. Haenk. 2 : 117. 1836. 



Wissadula elongata T. S. Brandeg. Zee 5: 210. 1905. 



Sinaloa to Guerrero. Cuba, Central America, and South America; type 

 from the Rio Negro. 



Shrub or herb, 0.5 to 2 meters high ; leaves reniform-cordate, 6 to 18 cm. 

 long and wide, abruptly acuminate, obscurely dentate, often shallowly trilobate, 

 green above, rather densely stellate-pubescent beneath ; petals yellow, 6 to 7 

 mm. long; carpels 4 to 5 mm. long. 



4. Pseudabutilon pringlei (Rose) R. E. Fries, Svensk. Vet. Akad. Handl. 43*: 



99. 1908. 

 Wissadula pringlei Rose, Contr. U. S. Nat. Herb. 3: 312. 1895. 

 Puebla and Oaxaca ; type from the State of Oaxaca. 



