55 



The West American Scientist. 



5* 



1888,"— S. Watson, Proc. Am. Acad., xxv. 



126-7 CRpnt. 25. 1K9(V>. 



SILEx^A PALMERI S. Watson. 



SILENA PLATYOTA S. Watson. 



Genus CE'RASTIUM Linnaeus. 



CERASTIUM NUTANS Raf. 



C, TRIVIALK Lnk. 



CERASTIUM VISCOSUM Linn. 



Genus STELLARIA Linnaeus. 



STELLARIA MEDIA Linn. 

 IS Nl-i EN6 AUttali 



Genus ARENARIA Linnaeus,. 



ARENARIA ALSINOIDES Willd. 

 ARENARIA DOUGLASII T. & G. 

 ARENARIA MACRADENIA Watson. 

 ARENARIA MACROPHYLLA Hook. 



SAPONARIA VACCARIA Linn. 

 Sagina occidentalis Wat da 3 w 



Genus LEPIGONUM Fries. 

 LEPIGONUM GRACILE Watson. 

 LEPIGONUM MACROTHEOUM F. & M 

 LEPIGONUM MEDIUM Pries. 



Genus POLYCARPOJfi Linnaeus. 

 POLYCARPON DEPRESSUM Nutt. 



Genus LOEF'LINGIA Linnaeus. 

 LOEPLINGIA SQUARROSA Nutt. 



ILLECEBRACEAE. 



Genus PESTACAEIA Bartling-. 

 PENTACAENA RAMOSISSIMA H. & A. 

 Genus AOHYRONYCHIA Tor. & Gr. 

 ACHYRONYCHTA COOPERI T. & G. 



POXtTTJLACACEAE. 



Genus PORTULACA Tonrnefort. 



PORTULACA OLERACEA Linn. 



Genus CAjuANDRINIA K. B. K. 



CALANDRINIA BREWERI S. Watson. 



CALANDRINIA MARITIMA Nutt. 



CALANDRINIA MENZIE3II Hook. 



C. EL EG AN IS Wpach da 3 



Genus CLAYTONIA Linnaeus. 



CLAYTONIA CHAMISSONIS Esch. 

 CLAYTONIA EXIGUA T. & G. 

 CLAYTONIA PARVIFLORA Dougl. 

 CLAYTONIA PERFOLIATA Don. 



California or Spanish lettuce; ey 4 72, da 3, j 

 CLAYTONIA SPATHULATA Dougl. 



Genus CAL YPTKIJ3ILM Nuttall. 



CALYPTRIDIUM MONANDRUM Nutt. 

 CALYPTR1DIUM PARRYI A Gray. 



Genus LEWISIA Pursli. 



LEWISIA BRACHYCALYX Engtrlm. 

 LEWISIA REDtVIVA Pursh. 

 SPRAGUEA UMBELLATA Torr. 



Genus FO'l^UIE'RA H. H. K. 



FOIIQUIERA GIGANTEA Orcutt. 



In February, 1899, the writer collect- 

 ed some small plants of the "curio ' 

 tree, near the gold mines at CalmaJlL 

 Lower California; May 2, 1900, the last 

 two were planted in the ground in 

 Han Diego, having been in a box during 

 the interim; the longest branchlets on 

 one of these was over a foot long and 

 bearing green foliage when at last 

 planted in the ground. As there is no 

 natural rainfall for two or three years 

 at a time in the region where it grows, 

 it is naturally well adapted to survive 

 a long continued drouth; it is one of 

 the most curious productions of the 

 plant world, forming a tree often over 

 30 or 40 feet high, resembling a great 

 carrot with its roots in the air. Dr. 

 Albert Kellogg named it Idria Colam- 

 naria; later it was recognized as be- 

 longing to the , genus Fouquiera. The 

 mushroom cactus, found in Texas, re- 

 sembles a silk-covered button, and can 

 be handled without gloves. The deli- 

 cate, starry net work of snowy- white 

 spines over the green plant gives it a 

 very beautiful appearance. 



FOUQUIERA SPLENDENS Engelm. 

 ELATINACEAE. 



Genus ELATINE Linnaeus. 



ELATINE AMERICANA Arn. 

 ELATINE BRACHYSPERMA Gray. 

 E. CALIF RN'lcA Gray 



Genus BERGIA Linnaeus. 

 BERGIA TEXANA Seubert. 



HYPEBJCACEAE. 



Genus HYPERICUM Linnaeus. 

 HYPERICUM ANAGALLOIDES C.-S. 

 HYPERICUM SCOULERI Hook. 



MALVACEAE. 



Genus MALVA Linnaeus. 



M parviftoraL (borealis Wallm) da 3 cv4 78 



M rotundifolium G Or s 



Genus SIDALCEA A. Gray. 



SIDALCEA MALVAEFLORA A. Gray. 

 SIDALCEA NEOMEXICANA A. Gray. 

 SIDALCEA PEDATA A. Gray. 



