114 eONTltlBUTIONS TO WESTERN BOTANY NO. I i 



f 



shrubs. Saw several' Cereus Pringlei with branches nearly a foot in diam- 

 eter and IS long, with whiskers on the end. It had some typical flowers. 

 February 2; went northeast to thie mountains. Bfirush very thick, 

 «tame in kind as eveiywhere. Much Cereus Pringlei. Saw a Pedilanthu* 

 with thorny clear to the ground climbing over a bush. There -were yellow 

 ioinfc^ full of seed, no flowers. Had long and leafy branches and fine and 

 deciduous bTack* needles. Stem 2 inches in diameter. Cereus Pringlei 

 ^as most of' tKe flbwcrs on the south side, facing the sum Northeast of 

 San Bias there are larger masses of trees, 20-30 feet high and with the 

 ■♦pines deveropcd into whiskers as iii the bottle-bnisfi but spines not so 

 hnst. No o<Ker difference in the plants. Saw some of the Guaymas 

 \famnTana, also Echinocactus Falconeri. Saw also Cereus Schottii (?) 



petaiya which sometimes develops aerial roots. Much 





r.rourera .species, also the tall leptocauli's species, with fruit triangular in 

 f)»»tline. smooth or spiny, with leaves an inch long and very prominent on 

 Renins «hoots, no flowers yet. 



Februarys J; 1927: Botanized on the river. The 

 idimorpha) is a big tree, 75 feet high, wift spreading habit of angusti- 

 tn]r.i hut not with the dying old branches so common in that species 

 Hirk IS gray and rough as usual in the genus. Male catkira all green 

 u-^\ at fl.]] red. Female* ones very slender. Leaves on lower shoots inclined 



«n f)e lwir.iT and serrate at first, the later ones are rhombodial and acumi- 

 •»nte. Plant is much ihfdsted with a parasite. The old leaves fall as fte 

 n^w one? come on. Trees never bare. Scales of first catkins brown. 



hn>.trfn» always yellow. 



F'bnian- 5, 1927. Below Culiacan. Now in oceans of the graceful 

 Lvsilom^^ randida-like shrub with mottled-gray bark, and tree 20 feet 



common. Cactus 



■' I 



-h. 



now 



r-i* 





but some Cereu3 FrinKlei. Parkinsonia aculeata occurred 



the bottoms. Sky clear. Very moist. Some cattle. No grass. 

 v.o-e Ccr^, Thurberi. Here is a ditch full of AzoUa (?) RocheUa 

 hrhcn rr, the BusHes. Bbmbax still. Agave Goldraani occasional. 



Ulate station. No^ near the sea. Brush lower, but has been as high 

 |.sjhe telegrjiph poles.^ Now close to the breakers. Here is a low bottle- 



thVusual Cereus Schottii- Brush lower. Mangle. 



Koad sJ 

 ns now. 



thunder clouds. Mountains 



Mode.sto station. Much Argemone alba. Some big trees. A peculi 

 CWt?s"°''' with branches like a f^ond-of a ffern, 10-15 feet Ion 



pe, 



Mazatlan. Everything very dry. dear and warm 



about 



P-.h,w °^^j;^"f^t^f Soing south. Saw on a wet flat what must be 



rJ^^fv'"- 7 •^'^^' ^^l ^^ ^^* ^^*SS' ^^ cornel-like one 20 feet 

 m^h B^h" ' T^ ^,5""^^ cereus. Mimosa, Agave vexans. Very 

 ^T Jr V""* n y^^^^\^^'^^^ species too, fbr the first time, fio^veIS 

 nfff^^nS/' „^"^P"^gJ"1 ^.ribbed-. Much Jatropha canescens. 

 Hoffmanseggia paRida. Some flat (^untfas. EuBhish. Much thorny 



