﻿PLANTS HEERMANNIANiE. 41 



LYNOSYRIS teretifolia, nova species. Fruticulus ericae facie, resinosus, balsamum 

 canadense redolens, 8-12-pollicaris cumuliformis, fruticeta vasta sistens. Trunculi 

 fere nudi, cortice disrupta emarcido-grisei; ramuli ochracei resinoso-vernicati, subco- 

 rymbosi, dense foliosi; internodiis brevibus, naviculato-depressis, marginatis. Folia 

 i-1-pollicaria filiforme-teretia obtusa, superne pauxillum sulcata et, aeque ac ramuli, 

 epidermide aphthoso-scabrella maximeque viscido-resinosa, induta. Capitula, flava in 

 summo spiculata subsessilia. 



A small bushy shrub, covering extensive tracts of land like the common heath of 

 Europe and presenting a corymbose summit densely set with filiform, erect, obtuse 

 leaves, 1-1 J" long, and crowded yellow heads of flowers. The lower branches are 

 almost naked, rugose with a cracked epidermis ; the upper branches, as well as the 

 leaves, with an aphthose-glandular resinous surface, emitting a strong smell of 

 fir balsam. The internodes are navicularly depressed below each axil and cos- 

 tate by the bordering ridges. Heads of flowers subsessile, aggregated into dense 

 terminal spikelets and clusters forming a corymb. All over the mountains, round 

 the Tejon Valley, September. 



APOCYNE^. 



APOCYNUM cannabinum, Var. lanceolatum. Nov. var. Leaves lanceolate, 

 acute at both ends very glabrous. River bottoms, Posa Creek, August. 



ASCLEPIADE.E. 



ASCLEPIAS macrophylla, Nutt. Var. camosa, nov. var. Tota planta, exceptis 

 pedunculis pedicellis umbellarumque involucellis pubescentibus, glaberrima glauca. 

 Caulis gracilis bipedalis subflexuosus erectus, fronde subsecunda, internodiis aliquoties 

 bipollicaribus. Folia spithamaea, ad primum cuj usque surculi nodum opposita, cete- 

 rum ternatim verticillata, in sicco conduplicata, marginibus haud, revolutis. Ramuli 

 singuli vel bini in axillis, exiles, tenues, flexuosi, dense foliosi. Umbellse binse vel 

 trinae in verticellis supremis, pedunculis sesquipollicaribus, involucris lineari-brac- 

 teatis, floribus parvis, numerosis (usque ad quadraginta), mediam folii partem vix 

 aequantes. Pedicelli dimidia pedunculorum longitudine. Flores virescentes, albido- 

 marginati nee fusci. Corollae lobi obovati, concavi, resurgentes, margine albo. 

 Coronae stamineae stipes eadem ac loborum longitudine ; lobi producti, ovati obtusi, 

 processibus cultriformibus, cristas connectivorum albo-scariosas sequantibus. 



Stem erect, slender, rather flexuose, about 2 feet high. Leaves a span long, 

 linear, smooth, doubled up without revolute margins, in whorls of three, except at the 

 lowest node of each shoot, where they are opposite. Internodes 2" or more long, 

 each with one or more slim and densely-leaved branchlets, giving it a comose appear- 



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