303 



1887 (No. ITH); February 15, 1890 (No. 1*>7) ; Ai)ril 1 aiul 2, 1890, in flowor; and 

 July 30, 18i)l, ill Iriiit. Mr. I5rau(!ti<i*'0 reports it from Lower C'alitbruia, and 

 Laa reeeiitly written n.ie that ho obtained it aim* at Giiaymas in 1892. 



For illustrations seo FrontiHpiecc anil I'Is. \\i\ and xxv. 



(\)usideraliio doubt lias existed aiiioii'^- our Aiiierican botanists as to what tliia 

 plant is, owing to tlui iiisnttieic'iit material wliich has be<Mi collected. This is the 

 plant reterr(!d to under No. 107, on liage W of this volume. A long note by Dr. 

 Sereno Watson with reference to the saine may be found in Pvoc. Auu'r. A<'ad^ 

 xxiv. 82 (1889), and anotluT by ilr. Hraudi-gee in I'roc. (_'al. Acad. ser. 2. ii. 21.5 

 (1889). The ripe fruit is much eaten by birds. 



1 liave named this remarkable tree in lionoi- of the lale Dr. Sereuo Watson, 

 who miide a careful study of the ])lant when it fust ap])eared in the collection of 

 Ilr. Falmer in 1887. 



In this species, which is clearly distiu<!t from F. pallida, thetiowers appearjust 

 after the leaves of the ]»revious growing season have fallen and before the new 

 leaves are put forth. In F. ^)«?7uZa the dowers and leaves ap]iear together: in 

 both cases the racemes of ilowers arise in the axils of the old leaves. F. pallida 

 seems to be clearly di(eciona as described, while /-'. ivatsom often has more or less 

 developed ovaries in the stauunatc racemes. 



Forehhanniter'ui lias been variously phu-ed, siunetinies in Capparidaccn', some- 

 times iu Fuphoihiacai, and once in Mnlvaceiv. It certainly does not belong to 

 the latter order nor do<'s it seem to me that it can be ]ilaced in Fiijihorhiacea. 

 Prof. Eadlkofer has nmde a very careful study of the genus, and believes that it 

 should be retained iu Cappayidmcii; where it was tirst placed by Liebmaim. 



BIXACEJE. 



Cochlospernium hibiscoides Kuiith, Syn. I'l. .E.i. ui. 214 (l824j. A tree 25 to 30 

 feet high. Common about :Maz:uHllo, December 1 to 31, 1890. No. 1096. This is 

 a beautiful flowering tree, remaining in bloom for more than two months. 



Bixa orellaua ( ?) I-. Sp. Ph i. 512 (1753). A small tree, 20 feet high, leaves mostly 

 rounded at base, rarely truncate : fruit broader than long. Along the bay oppo- 

 site the city of ISIanzanillo, Decendjer 1 to 151. 1890. No. 920. 



Xylosma horrida lioso, sp. nov. A tree 30 feet high, 8 nn.'hes in diameter ; thorns on 

 the trunk large, often 3 to inches long, branching: leaves 2i to ?,)■, inches 

 long, acute or slightly acuininatt', broadly cuneate at base, bluntly serrate, 

 glabrona and shining: tiowers hermai>hr(Klit<; in short axillary racemes; sepals 

 email: glandular disk ])roiinnent: stamens about 20, niiudi longer than the 

 sepals: ovary glabrous, prolonged iiiti) a slender style; stigmas 2: seeds 2 to 6, 

 oval in outline.— Manzanilb), March 2 to 18. 1891. No. 1340. 



This species agrees with A", ?)i?(j'm«/(a, collected in I'anama, in having ita 

 tlowers racemose and hermaphrodite, but this latter plant is described as a 

 shrub 10 feet high, with large leaves, without thorns, with sepals nearly as long 

 as the stamens and with 3 stigmas. Its nearest alliance is probably with A'. 

 calophiiUum. I am indehted to ('apt. John Douuell Smith f<u- cimiparing my 

 specinK'U with No. 1(500 of Spruce, aln^ady referred to X. ralophijllnm, of which 

 hewritt^s: "Like your 1340, the spines are long aiuI branched and the hertna- 

 phro<lite tlowers are racemose and glands of disk unmerous, but the leaves are 

 quite different.'' 



Xylosma palmeri IJose, sp. nov. 1 )i(iMio-i)olygamou8. glalmms, armed at the nodes 

 with slender straight spines 5 to 15 IIih's long: h-aves about 2 inches hmg, 

 elliptical, cnneate at l>ase, alternate, shining, dentate : flowers fasciculately 

 grouped, 6 to 10 together: pedicels 4 to 51ines bmg: male flowers with 4 scjials, 

 20 to 20 stamens set within the disk, aiul no style: female or liciina]dkrodit6 

 flowers, with a iiroiiiineiit disk, few (ir im stamens, short style; broad, peltate 



